Climate change involves natural and man-made changes to weather patterns that occur over millions of years or over decades.
In the past 150 years, human industrial activity has accelerated the rate of change in the climate due to the increase in greenhouse gases (carbon dioxide, methane, and nitrous oxide). Scientific studies describing this climate change continue to be produced and its expected impacts continue to be assessed.
In California, the California Environmental Protection Agency has found temperatures have risen by about 1.5 degrees since 1895. Looking ahead, temperatures could rise by 2.7 degrees and its sea levels by 55 inches in the next 40 years, according to the California Energy Commission and the California Natural Resources Agency. These are among the ongoing issues the state faces as it grapples with climate change.
Already, California is confronting rising demand for water and diminishing supplies. At the same time, the state’s water infrastructure such as levees is increasingly aging and in disrepair—conditions expected to be made worse by climate change.
Around California, the country and the world, reservoirs are silently filling with sediment, and only a few people are thinking about it. … According to new research from the U.S. Geological Survey, in many regions erosion rates are now accelerating thanks to wildfires and climate change. The western U.S., which relies on reservoirs for vital water storage and flood control, will be particularly impacted.
The cities of San Francisco and Oakland are suing some of the world’s largest oil companies over climate change, joining an emerging legal effort to hold the fossil fuel industry accountable for the damages wrought by rising seas.
Back-to-back hurricanes raked Texas, Florida and the Caribbean. A Labor Day heat wave broke temperature records in San Francisco and strained California’s electricity grid. Wildfires continue to rage in the Pacific Northwest.
With Hurricane Irma smashing into Florida so soon after Hurricane Harvey flooded southeastern Texas — and as wildfires burn through the western United States — extreme events have been hitting the U.S. from all sides. To what extent does climate change influence them?
Hurricanes Harvey and now Irma became monster storms while swirling over two separate stretches of unusually warm ocean water, a feature that has reignited debate on climate change and the degree it is adding to the intensity of hurricanes.
Soon after President Donald Trump’s inauguration, a page on climate change vanished from the White House website, sending a chill through the scientific community. Within weeks, state Sen. Hannah-Beth Jackson, D-Santa Barbara, proposed a bill to protect whistleblowers and safeguard data collected by scientists …
Wildfires from the Oregon border to Los Angeles. Temperatures hitting 100 degrees in San Francisco, and higher in Sacramento, capping off the hottest summer in California history. … State climatologist Michael Anderson, who works for the Department of Water Resources, said Californians should start getting used to this kind of weather.
One of north Lake Tahoe’s cutest residents, the American pika, has disappeared. UC Santa Cruz researchers have discovered an extinction spanning from Tahoe City to Truckee, the largest pika die-off in the modern era.
The 21st annual Lake Tahoe Summit brought together federal, California and Nevada elected officials to discuss the importance of continued partnership in the basin-wide fight against tree mortality, invasive species, declining lake clarity — and the global issue of climate change.
Former Interior Secretary Bruce Babbitt will deliver the keynote address — a responsibility performed in 2016 by former President Barack Obama. … Additional remarks will be delivered by U.S. Sens. Dianne Feinstein, Dean Heller (R-Nev.), Kamala Harris (D-Calif.), and Catherine Cortez Masto (D-Nev.); Reps. Tom McClintock (R-Calif.) and John Garamendi (D-Calif.); Gov. Brian Sandoval (R-Nev.); and Joanne Marchetta, executive director of the Tahoe Regional Planning Agency.
Earlier this month, someone involved in the government’s latest report on climate change provided The New York Times with a copy of the version submitted to the Trump administration for final approval. The main intent of the leak, according to several people tracking the report, was to complicate any attempt to suppress the study or water down its findings.
An annual analysis of the planet’s climate reaffirms what researchers knew was the case: that 2016 was the hottest year since at least 1880, when reliable global measurements were first kept. … The atmosphere is not only the place with incremental warming: the world’s freshwater lakes are also heating up.
SOUTHWEST (California, Nevada, Utah, Colorado, New Mexico and Arizona) -The average annual temperature has already gone up 1.56 degrees since 1901-1960 and is projected to rise another 4.8 degrees by mid-century and 8.65 degrees by the end of the century if carbon pollution continues unabated.
The average temperature in the United States has risen rapidly and drastically since 1980, and recent decades have been the warmest of the past 1,500 years, according to a sweeping federal climate change report awaiting approval by the Trump administration.
Intense seasonal changes in 2016 — hallmarks of climate change — killed huge swaths of forest around the lake and nourished invasive species, according to the annual Tahoe State of the Lake Report released Thursday by the UC Davis Tahoe Environmental Research Center.
Lake Tahoe’s famously clear waters continue to warm, and the surrounding forests face dire threats due to drought, disease and insects, according to the annual Tahoe State of the Lake report by researchers at UC Davis. The second deepest lake in the United States after Crater Lake, Lake Tahoe has warmed by half a degree Fahrenheit each year for the past four years — 14 times faster than the historic rate, the report said.
As California emerges as a force on climate change and a counterweight to President Donald Trump, residents of the green-minded state widely support environmental actions taken by leaders in Sacramento, according to a survey released Wednesday.
The atmospheric condition at any given time or place, measured by wind, temperature, humidity, atmospheric pressure, cloudiness and precipitation. Weather changes from hour to hour, day to day, and season to season. Climate in a narrow sense is usually defined as the average weather, during a period of time ranging from months to thousands or millions of years.
Variations in the statistical analysis of the climate on all time and space scales beyond that of individual weather events is known as natural variability. Natural variations in climate over time are caused by internal processes of the climate system, such as El Niño, and phenomena such as volcanic activity and variations in the output of the sun.
Seaside cities are starting to prepare for the worst, conducting vulnerability studies and considering a suite of options. Among other measures, they can try to armor their coastlines using seawalls, move critical infrastructure and even retreat farther inland. Elected officials could update zoning rules to discourage future building along the water.
Californians have been bracing themselves for a drier future accompanying a warming climate. But research by scientists at the University of California, Riverside, suggests that the state may actually get wetter in the event of severe climate change.
Marin County sued 37 oil, gas and coal companies Monday asserting the companies knew their fossil fuel products would cause sea level rise and coastal flooding but failed to reduce their greenhouse gas pollution. The lawsuit was part of a coordinated litigation attack by Marin, San Mateo County and the city of Imperial Beach.
On June 19, the National Weather Service branch in Sacramento, Calif., tweeted a photo of bacon and cookies baking on the dashboard of a car, ending the post with “#heatwave.” … The West, known for hot summers, is getting a glimpse of what the future might hold if climate change continues at the current pace.
When it comes to California and climate change, the predictions are staggering: coastal airports besieged by floodwaters, entire beaches disappearing as sea levels rise. Another disturbing scenario is brewing inland, in the sleepy backwaters of the Sacramento-San Joaquin Delta.
An amendment to the annual defense policy bill requiring the Pentagon to submit a report on the national-security threats posed by climate change was approved by members of the Republican-led House Armed Services Committee on Wednesday.
Lawmakers concerned about curbing pollution and a warming planet gave a cool reception to President Donald Trump’s environmental chief on Thursday as he defended the administration’s proposal to sharply reduce the budget of his own agency.
Energy ministers from around the world gathered in Beijing this week to report increased spending to help counter climate change. Yet one prominent voice, that of U.S. Energy Secretary Rick Perry, delivered a starkly countervailing message as the Trump administration seeks to roll back spending on clean energy and promote fossil fuels.
Even as President Donald Trump has announced his intention for the U.S. to withdraw from a global climate agreement, many of the nation’s river communities are responding to climate change by raising or replacing bridges that suddenly seem too low to stay safely above water.
Along with the German state of Baden-Wurttemberg, California in 2015 helped organize the Under2 Coalition, made up of state and local governments worldwide … Many in the coalition are concerned about how the effects of climate change, including rising seas, could affect their coastal cities, agriculture and ecosystems.
As President Donald Trump dithers on the fate of the Paris climate deal, California and other western states are banding together to reduce carbon emissions and save hundreds of millions of dollars — and now a Canadian province will join them. … BC Hydro operates 31 hydroelectric power plants, which could help California and other western states bring more solar and wind power online.
UC Davis scientists from the Tahoe Environmental Research Center have been measuring the lake’s water clarity for nearly 50 years. The latest data shows a big drop in how far down the human eye can see into the lake.
Climate change is causing Lake Tahoe to warm sooner in the spring than it has historically, disrupting the normal mixing of shallow and deep water and undercutting gains made in reversing the loss of clarity of the cobalt mountain lake, scientists say.
A worst-case sea level rise increase of 10 feet to 12 feet by the year 2100 would utterly transform Stockton as we know it today. Climate Central, a New Jersey-based climate science nonprofit, recently published maps depicting what this unlikely, yet still “plausible,” scenario might look like.
Weird weather and climate warming are two separate things, but a Stanford team is linking them. Using math, powerful computers and historical records, research led by Noah Diffenbaugh found that climate change has boosted the odds of extreme heat, drought, punishing rainstorms and retreating sea ice.
When the health effects of climate change are discussed, the planet-scale impacts get the attention: rising temperatures, which can cause death from overheating; earlier springs, which pump more pollen toward the allergic; runoff from violent storms, which washes fecal bacteria out of sewer pipes; changing airflows that trap ozone near the ground, stressing the systems of people living with heart disease. The unpredictable weather patterns stimulated by climate change affect infectious diseases, as well as chronic ones.
A state-commissioned report on climate change released Wednesday raises the stakes for fighting global warming, offering a clearer and, in some cases, more catastrophic picture of how much sea levels will rise in California.
California’s climate has long been dominated by cycles of intense dry conditions followed by heavy rain and snow. But never before in recorded history has the state seen such an extreme drought-to-deluge swing.
Gov. Jerry Brown declared the end of California’s drought emergency on Friday, stressing that water conservation must be a permanent part of life as the state adapts to climate change and prepares for the next drought.
tartlingly green hills, surging rivers and the snow-wrapped Sierra Nevada had already signaled what Gov. Jerry Brown made official Friday: The long California drought is over. Brown issued an executive order that lifts the drought emergency in all but a handful of San Joaquin Valley counties where some communities are still coping with dried-up wells.
California’s water regulators are looking to strengthen their focus on climate change, adopting policies aimed at helping the state prepare for more severe floods, more extreme droughts and shrinking snowpack.
To friends and critics, Mr. [Scott] Pruitt seems intent on building an E.P.A. leadership that is fundamentally at odds with the career officials, scientists and employees who carry out the agency’s missions. That might be a recipe for strife and gridlock at the federal agency tasked to keep safe the nation’s clean air and water while safeguarding the planet’s future.
The drought has been declared over in most of California, with heavy winter rains sending water over the Oroville dam and forcing the evacuation of nearly 200,000 people. But climate change is still in the air, and the recent weather pattern is a harbinger of what’s to come.
Above-average snowpack in the Rocky Mountains this year may bring some relief to the Colorado River Basin, which has been in a drought since 2000. But the long-term picture for the region is less rosy after a newly published study found just how much higher temperatures are impacting river flow.
Jeffrey Mount, a leading expert on California water policy, remembers the last time a crisis at the Oroville Dam seemed likely to prompt reform. It was 1997 and the lake risked overflowing, while levees further downstream failed and several people died.
Top scientists announced in January that last year was the hottest year on record — an announcement they’ve made three years in a row, with 2014, 2015 and now 2016 each being declared warmer than the previous year.
The Trump administration moved Tuesday to distance itself from a leading climate-change skeptic who was part of the team leading the transition for the National Oceanic and Atmospheric Administration – an appointment that had alarmed NOAA employees.
President Donald Trump is taking aim at one of the federal government’s main agencies for climate change research – the National Oceanic and Atmospheric Administration – and NOAA employees are girding for drastic changes in how they conduct science and report it to the public.
California agriculture is going to have to learn to live with the impacts of climate change and work toward reducing its contributions of greenhouse gas emissions, a Yolo County walnut grower said at the Jan. 26 California Climate Change Symposium in Sacramento.
“I don’t believe we are going to be able to adapt our way out of climate change,” said Russ Lester, co-owner of Dixon Ridge Farms in Winters. “We need to mitigate for it. It won’t solve the problem but it can slow it down.”
Ocean rise already is worsening the floods and high tides sweeping California this stormy winter, climate experts say, and this month’s damage and deaths highlight that even a state known as a global leader in fighting climate change has yet to tackle some of the hardest work of dealing with it.
Americans have had one primary reason for building dams over the past century: capturing water for growth, whether on farms or in cities. Now a new dam proposed on California’s Bear River offers another reason: adapting to climate change.
A new independent study shows no pause in global warming, confirming a set of temperature readings adjusted by U.S. government scientists that some who reject mainstream climate science have questioned.
Powerful storms often hailed for bringing drought-busting rains to California also served to virtually wipe out a healthy growth of native Olympia oysters at China Camp near San Rafael, raising concerns about climate change, according to a new study.
The world’s leading global-warming scientists, many of them living and working on the front lines in Florida, are hoping against hope that President-elect Donald Trump and his top advisers will not take the country backward in the fight against rising sea levels, increasing temperatures and looming environmental dangers.
Donald Trump picked Oklahoma Atty. Gen. Scott Pruitt to run the Environmental Protection Agency, signaling the president-elect will deliver on his vow to disassemble President Obama’s landmark effort to fight climate change.
How low can the Colorado go? When will we get back to “normal” winters? Can we blame it all on climate change? To address some of these questions, the Colorado River Research Group recently released a concise four-page paper explaining how climate change is affecting the river.
In a ruling that has ramifications for land-use and water policy across the United States and California, a federal appeals court ruled Monday that scientists can draw on long-range climate projections to determine whether a species should be listed as threatened.
Climate change from human activity nearly doubled the area that burned in forest fires in the American West over the past 30 years, a major new scientific study has found, and larger, more intense fires are all but guaranteed in the years ahead.
Wildfires in California and across the West have become twice as destructive over the past three decades due to climate change, taking a toll that will only continue to escalate, according to research published Monday.
The Lake Tahoe Basin saw continued environmental improvement over the last four years, but faces major challenges from climate change, according to a draft 2015 Threshold Evaluation Report released by the Tahoe Regional Planning Agency (TRPA).
When naturalist John Muir explored Lyell Glacier in Yosemite National Park about 150 years ago, the river of ice stretched as far as 10 football fields between the peaks of the Lyell Canyon, a glacier one might expect to see in Alaska, not California.
Released today, the study in Scientific Reports — part of the Nature Publishing Group — found that carbon dioxide and methane emitted from the burning of fossil fuels may be mimicing the effects of some catastrophic environmental phenomena the planet has previously experienced.
As Southern California firefighters battled the Blue Cut Fire last month, there was nothing they could do to fend off an unfortunate reality: Global warming is already lengthening wildfire season and increasing the likelihood of extreme fires across the West.
So far this 4,636 wildfires in California have burned more than 200,000 acres. That’s more fires than this time last year and more fires than the five-year average. … California has an added challenge of dealing with a five-year drought.
President Barack Obama, fixed against a pristine backdrop of the Sierra Nevada, issued a forceful defense Wednesday of his administration’s policies to address climate change, warning that rising temperatures could lay waste to decades of conservation efforts at Lake Tahoe and throughout the United States.
Standing beneath the forest-green peaks of the Sierra Nevada, President Barack Obama drew a connection Wednesday between conservation efforts and stopping global warming, describing the two environmental challenges as inseparably linked.
The White House on Wednesday announced a series of new funding and environmental programs to address the deteriorating health of Lake Tahoe and the surrounding forests caused in part by the increasing temperatures brought about by climate change.
At a conservation summit on the southern shore of Lake Tahoe, President Obama on Wednesday pointed to the environmental degradation of the lake’s once-crystal-clear waters as proof of the damage caused by climate change and warned of the threat posed by Republican leaders who continue to deny its existence.
Tropical Storm Colin ripped across the Gulf of Mexico in June and hit the coast of southwest Florida with 60-mile-an-hour winds. Before it arrived, a team from the U.S. Geological Survey used a new computer model to predict how far inland the waves would invade.
California’s iconic natural features, from salmon runs to Joshua trees, could dwindle or disappear, as climate change rearranges the state’s weather patterns and landscape, leaving much of the state hotter and drier, scientists warn.
Snow-capped Mount Shasta and the slumbering volcanoes of the Cascade range hold reservoirs of life-giving cold water that nourish threatened fish and could save the species when the changing climate warms downstream rivers, UC scientists say.
A poll by the Public Policy Institute of California shows, despite a partisan divide, 62 percent of likely voters favor the law [AB 32]. … The poll also found that water supply and drought remain the top environmental concern for Californians.
Gov. Jerry Brown’s office recently held the first in what’s expected to be a series of private meetings with scientists, conservationists and fire professionals to discuss how to prevent massive blazes in the face of climate change and prolonged drought.
The way clouds cover the Earth may be changing because of global warming, according to a study published Monday that used satellite data to track cloud patterns across about two decades, starting in the 1980s.
California’s Rim Fire in 2013 was the third largest in the state’s history, and the 2012 Rush Fire, the second largest. And last year’s Butte and Valley fires were some of the most destructive in state history. These grim statistics are part of an alarming trend in western states: The number of large fires is growing, and so is the area burned and the length of the annual fire season.
A speeding wildfire in California that turned hundreds of homes near Lake Isabella to piles of twisted rubble has forced a conversation about how to minimize destruction in the most populous state experiencing the effects of climate change.
California has been diligently trying to reduce use of fossil fuels and cut greenhouse gas emissions. Last year, Gov. Jerry Brown signed Senate Bill 350, which requires 50 percent of the electricity from utilities to come from renewable sources by 2030. But it’s not just energy utilities that can add more renewables to their portfolios – water suppliers can, as well, although they aren’t mandated to do so.
To understand what the future holds, sometimes we have to look at the past, Bruce Daniels has learned. Daniels is trying to help Californians understand future water availability by examining 85 years of daily precipitation records. His analysis has shown that water managers (and the rest of us) have some reason to be concerned.
Experts say the results of a two-year, $10 million experiment called CarbFix , conducted about one-third of a mile (540 meters) deep in the rocks of Iceland, offer new hope for an effective weapon to help fight man-made global warming.
By examining swirling patterns left in ice topping the Red Planet’s north pole, scientists using radar data from NASA’s Mars Reconnaissance Orbiter have put together an unprecedented look into our rusty neighbor’s most recent ice age.
Fifty years ago, Bay Area residents rallied around the call to save San Francisco Bay. Public action on an unprecedented scale reversed development tides that for more than a century had covered shallow waters with land for industrial parks and housing tracts, roadways and garbage dumps.
In another sign of the warming climate, key species of trees in California’s Sierra Nevada mountain range — including lodge pole pine, red fir and western white pine — are shifting to higher elevations in search of cooler temperatures, a broad new study by state biologists has found.
We often associate climate change with too much water — the melting ice caps triggering a rise in sea levels. But a new World Bank report says that it’s too little water — the potable sort — that we also need to think about.
A mix of rising global temperatures, mysteriously warmed waters off Baja California and unusually far-reaching storms in the western Pacific Ocean conspired to block this year’s El Niño storms from hitting Southern California, the National Weather Service said this week.
With California entering its fifth year of a statewide drought, Gov. Jerry Brown moved on Monday to impose permanent water conservation measures and called on water suppliers to prepare for a future made drier by climate change.
Global warming has mostly made the weather more pleasant for Americans over the last 40 years, which may explain why much of the public doesn’t rank climate change as big a threat as do scientists and the rest of the world, a new study suggests.
Interior Secretary Sally Jewell on Tuesday called for “a major course correction” in the way the nation conserves its public lands, waters and wildlife, saying climate change and other trends threaten natural areas “in existential ways.”
This year is off to a record-breaking start for global temperatures. … With the release on Tuesday of its global climate report, NOAA is the third independent agency — along with NASA and the Japan Meteorological Association — to reach similar findings, each using slightly different methods.
If you’ve heard the presidential candidates talk about climate change, you’d probably guess it’s one of America’s most divisive issues. … But polls show that a vast majority of Americans believe climate change is happening — and young people especially want the United States to do something about it.
Among firs and cedars high in the Sierra Nevada, scientists are using an array of instruments to monitor the health of the forest, measure the snowpack and track the water that melts and seeps into the soil. … Already, as the winters have grown warmer, the snow has been melting earlier after storms pass.
The first Alaska wildfire of 2016 broke out in late February, followed by a second there just eight days later. … And on the border of Arizona and California this month, helicopters dumped water on flames so intense that they jumped the Colorado River, forcing the evacuation of two recreational vehicle parks.
Don Cameron expects farmers will see some of the biggest effects as the climate changes, and he says growers need to take proactive steps to prepare. … He is one of several featured speakers at the upcoming One Nation: Climate Change forum at the Sunnylands Center and Gardens in Rancho Mirage.
The White House held its first national water summit on Tuesday, seeking to put a greater focus on water challenges ranging from climate change to the old, leaky pipes that waste billions of gallons across the country every day.
Climate change could upset the complex interplay of rain, snow and temperature in the West, hurting food production, the environment and electrical generation at dams, the federal government warned Tuesday.
President Barack Obama on Monday directed the federal government to come up with a less reactionary and more long-term strategy for dealing with drought. … The White House is hosting a “water summit” on Tuesday, which is World Water Day, to raise awareness of the importance of safe, sufficient and reliable water resources.
California had its warmest winter on record in 2014-2015, with the average Sierra Nevada temperature hovering above 32 degrees Fahrenheit – the highest in 120 years. Thus, where California relies on snow to fall in the mountains and create a snowpack that can slowly melt into reservoirs, it was instead raining. That left the state’s snowpack at its lowest ever – 5 percent on April 1, 2015.
Because he relays stats like these, climate scientist Brad Udall says he doesn’t often get invited back to speak before the same audience about climate change.
As many as 13.1 million people living along U.S. coastlines could face flooding by the end of the century because of rising sea levels, according to a new study that warns that large numbers of Americans could be forced to relocate to higher ground. … As many as 1 million California residents could be affected.
Climate science has progressed so much that experts can accurately detect global warming’s fingerprints on certain extreme weather events, such as a heat wave, according to a high-level scientific advisory panel.
The U.S. Fish and Wildlife Service followed the law when it designated more than 187,000 square miles – an area larger than California – as critical habitat for threatened polar bears in Alaska marine waters and its northern coast, an appeals court ruled Monday.
For years scientists have warned that climate change will cause melting ice caps, rising sea levels and severe droughts and floods. But global warming’s effects can also be far more personal, seriously harming human health.
The worsening of tidal flooding in American coastal communities is largely a consequence of greenhouse gases from human activity, and the problem will grow far worse in coming decades, scientists reported Monday.
After the costliest of wildfire seasons ravaged the West last year, with three catastrophic blazes ripping through Lake County, the U.S. Forest Service may be headed for a showdown with Congress over how to cover the surging bill.
The types of storms that have been bringing heavy snow and rain to the West this winter, triggering landslides and floods while easing stubborn droughts, are likely to become stronger and more frequent, according to the results of a conclusive new study.
Any sign of precipitation in the forecast is a welcome sight for Californians these days. But with temperatures expected to be above normal this winter, California’s snowpack may not reach the heights it could.
Like hundreds of lakes around the world, Lake Tahoe has been warming steadily for more than 40 years, with surface temperatures rising faster than the global warming rate of oceans and the atmosphere, an international survey has detected.
In a milestone for San Francisco Bay restoration that also raises questions about who should pay to protect property from rising seas caused by climate change, a low-profile government agency is expected to place a $12 annual parcel tax on the June ballot in all nine Bay Area counties.
The White House launched an ambitious effort to enlist the private sector in its efforts to reclaim and conserve water Tuesday, saying it’s critical for the country to better manage water supplies that are under increasing pressures from climate change.
The Paris conference brought cheers not only from renewable energy advocates but from water groups. For years, organizations that focus on the world’s freshwater resources felt marginalized in the climate change debate. A warmer planet means nastier droughts, bigger floods, and unsettling perturbations in the water cycle, but the question of adaptation was mostly ignored by diplomats.
The governor sat down with Capital Public Radio’s Ben Adler before leaving for the United Nations Climate Change Conference in Paris, France. … [Gov. Jerry] Brown also declined to say if he’ll use his $20 million dollar campaign war chest to oppose a different initiative that would block his proposed Delta tunnels project.
This time, it’s a hotter, waterier, wilder Earth that world leaders are trying to save. … Some differences can be measured: degrees on a thermometer, trillions of tons of melting ice, a rise in sea level of a couple of inches.
October’s temperature was the most above-normal month in history. … [NOAA climate scientist Jessica] Blunden and other scientists blame a potent and strengthening El Nino on top of accelerating man-made global warming.
A legal battle is brewing in Washington over President Barack Obama’s plan to reduce greenhouse gas emissions, setting states economically dependent on fossil fuels against those already suffering from longer droughts, stronger storms and higher seas.
The ash of the Rocky fire was still hot when Gov. Jerry Brown strode to a bank of television cameras beside a blackened ridge and, flanked by firefighters, delivered a battle cry against climate change.
San Francisco Bay is in a race against time, with billions of dollars of highways, airports, homes and office buildings at risk from rising seas, surging tides and extreme storms driven by climate change. … That’s the conclusion of a new report from more than 100 Bay Area scientists and 17 government agencies that may help fuel a regional tax measure aimed at addressing the looming crisis.
A coalition of scholars across the West is urging the federal government to partner with the National Academy of Sciences to study the future of the Colorado River, including if climate change is leading to reduced stream flow.
The changing nature of fire, and its consequences, is Topic A at meetings of the Society of American Foresters, of which [Char] Miller is a member, and it’s also a fundamental part of his forthcoming book, “America’s Great National Forests, Wildernesses and Grasslands.”
Rising sea levels threaten not only structures around San Francisco Bay and the Delta but the shoreline marshes critical to the environmental health of the estuary, and the results could be “catastrophic” if action is not taken, scientists warned Thursday.
In a paper published Monday in the journal Nature Climate Change, scientists estimate that the amount of snow in the Sierra Nevada was the lowest in more than 500 years. … The report is the latest in a series of studies that have sought to characterize the depth of California’s four-year drought and place it in a broader historic context.
Researchers from California’s top universities agree with scientists across the globe that climate change is not some future threat but is already happening, causing extreme weather, record-breaking heat, mega wildfires and shifting migration patterns.
California is already dealing with the effects of climate change, but scientists and policy experts are discussing how to better manage and adapt to those effects during the California Climate Change Symposium in Sacramento.
Perhaps the stunning blue lake waters were the inspiration for Gov. Jerry Brown to offer a crystal-clear message at Lake Tahoe’s annual environmental summit: Opponents in the political fight over climate change better be ready.
In a dramatic sign of climate change’s growing impact, this July was the warmest month on Earth since modern temperature records were first kept in 1880, federal scientists announced Thursday. While climate change isn’t causing California’s drought, it’s making the disaster worse, according to a separate report released Thursday.
Another month, another record high for global temperatures, U.S. government scientists announced Thursday. … The report bolstered predictions from NOAA’s Climate Prediction Center that an El Niño is likely later this year.
A growing number of scientists have made the claim that climate change is at least partly responsible for California’s crippling drought. Now researchers have estimated the extent to which humans are to blame: between 8% and 27%.
Global warming caused by human emissions has most likely intensified the drought in California by roughly 15 to 20 percent, scientists said Thursday … “The whole water system that we have in California was designed for the old climate,” said Noah S. Diffenbaugh, a climate scientist at Stanford who edits the journal that published the new paper.
If human beings don’t slow their emission of planet-warming greenhouse gases, extreme El Niños could nearly double in frequency — from once every 28 years to once every 16 years on average, the new study found.
California in the Great Drought is a living diorama of how the future is going to look across much of the United States as climate change sets in. … Now, the large dark bruise spreading across the state on the U.S. Drought Monitor map is a preview of a bone-dry world to come.
The imminent danger from the devastating Rocky Fire in Lake County diminished Thursday and residents began to return to their evacuated homes, but Gov. Jerry Brown made clear in a visit to the area that California is still in danger.
Gov. Jerry Brown, who called a state of emergency last week and visited the [Rocky Fire] area Thursday, blamed climate change for hot weather that contributes to drier forests and increased fire danger.
Nearly two-thirds of Californians say global warming is contributing to the state’s drought, but there’s a distinct partisan divide, according to a survey released Wednesday. … When it comes to drought-fighting measures that hit closer to home, the survey found strong support …
Jay Famiglietti is a Senior Water Scientist with NASA’s Jet Propulsion Lab and a Professor of Earth Systems Science at UC Irvine. We asked him if California is seeing an intersection of the drought and climate change.
The pope [Pope Francis] says “a very solid scientific consensus” indicates that global warming is real, and will limit drinking water, harm agriculture, lead to some extinctions of plant and animal life, acidify oceans and raise sea levels in a way that could flood some of the world’s biggest cities.
As for the drought, [Gov. Jerry] Brown told [Los Angeles Times Publisher Austin] Beutner that Californians need to “take water and use it and use it again and use it again. The metaphor is spaceship Earth. In a spaceship you reuse everything.” OK, but where’s the state’s crash recycling program?
[Interior Secretary Sally] Jewell said climate change and drought are to blame for worsening wildfires, which she said destroy homes and businesses, threaten power grids and drinking water and cause damage river valleys that cost millions and take decades to restore.
The Water Education Foundation’s flagship event, the 33rd annual Executive Briefing, will be held March 17, 2016 in Sacramento. The theme for this year’s Briefing is “Defining the New Normal.”
This is the go-to conference for water district managers and board members, state and federal agency officials, city and county government officials, farmers, environmentalists, attorneys, consultants, engineers, business executives and public interest groups.
Confirmed speakers include State Water Board Chair Felicia Marcus and California Natural Resources Secretary John Laird. See announcements on the right-hand of this screen for more program information.
Doubletree by Hilton
2001 Point West Way, Sacramento, CA 95815
For years, the health of Lake Tahoe was best understood by means of an annual dropping of a white disk — known as a Secchi disk — in the middle of the lake and measuring the depth at which it could still be seen.
By 2050, parts of Los Angeles County are forecast to experience triple or quadruple the number of days of extreme heat if nothing is done to control greenhouse gas emissions, placing further demand on the region’s drinking water and electricity, according to two new reports by UCLA scientists.
Scientists have discovered that the diversity of a threatened native trout species will likely decrease due to future climate change. … Researchers with the USGS, University of Montana and U.S. Fish and Wildlife Service examined whether bull trout genetic diversity was related to climate vulnerability at the watershed scale, which was determined on the basis of current and future predictions of stream temperature and flow and existing habitat conditions.
When Andy Wirth became the CEO of Squaw Valley Ski Resort in November 2010, he did so amid a precipitation-laden winter that saw enormous snow loads give skiers at Lake Tahoe plenty of coveted powder days.
The plan by the U.S. Army Corps of Engineers calls for improving 23 miles of levees, from Mosher Slough in the north to French Camp Slough in the south. This is intended to protect much of Stockton from catastrophic floods worsened by climate change.
Pat Mulroy, a senior fellow with the Metropolitan Policy Program at Brookings and a senior fellow for climate adaptation and environmental policy at UNLV’s Brookings Mountain West, discusses the water scarcity issues that have developed over the last few decades and the realistic future of water in the U.S. … During her tenure at SNWA [Southern Nevada Water Authority], the region faced a huge crisis when one of the worst droughts in the history of the Colorado River hit the region.
After 40 years of working on California water issues, it sometimes feels to me [George Miller] as if we haven’t learned anything. … The policies of the past century won’t work in a future where we will face continued population growth and the effects of climate change.
In a new study, published in the March 2 issue of the journal of the Proceedings of the National Academy of Sciences, researchers led by Stanford professor Noah Diffenbaugh examined the role that temperature has played in California droughts over the past 120 years. They also examined the effect that human emissions of carbon dioxide and other greenhouse gases are having on temperature and precipitation, focusing on the influence of global warming upon California’s past, present and future drought risk.