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.
The morning temperature of the black asphalt in the middle of a nearby intersection read 93 degrees. The new light gray surface on Jordan Avenue read a cool 70 — on what would turn out to be the first heat wave of the year.
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.
Clarity levels at Lake Tahoe in 2016 increased in winter and decreased in summer in 2016. The summer values were due to the continuing effects of climate change, according to researchers at the University of California, Davis. The summer declines were so large that they outweighed the improving winter clarity.
A conservation group working in the American West has proposed a dramatic solution to water woes in the Rio Grande basin. … The problem, according the report, titled “The Rio Grande: Rethinking Rivers in the 21st Century,” is that Elephant Butte Reservoir’s large size combined with its shallow depth make its water exceptionally vulnerable to evaporation.
The effects of rising oceans on coastal flooding may be even worse than we thought. Scientists have found that a mere 10 to 20 centimeters of sea-level rise — which is expected by 2050 — will more than double the frequency of serious flooding events in many parts of the globe, including along the California coastline.
California is a hot spot for endemic species, those found nowhere else in the world. Among these species are 20 kinds of salmon and trout. That is an astonishing number considering California is also literally a hot-spot in terms of summer temperatures and that these salmonids are cold-water adapted. These 20 endemic are joined by 12 other species with broader distributions, north along the Pacific Coast.
The USDA’s research section studies everything from climate change to nutrition. Under the 2008 Farm Bill, its leader is supposed to serve as the agency’s “chief scientist” and be chosen “from among distinguished scientists with specialized or significant experience in agricultural research, education, and economics.”
Researchers at Climate Central have put together a handy tool which lets you see just how bad summers will get by 2100, if global warming predictions are accurate and nothing is done to stop the upward trend.
But now comes the harder part for many Californians: In 2015, AB 32 will begin to cover companies that produce transportation fuels, including gasoline. That means oil companies will begin paying for the greenhouse gases their products emit, a cost the oil companies say they will pass on to consumers.
From the San Bernardino County Sun, in a commentary by Thomas Elias:
California ranchers are now among the first interest groups to realize that like it or not, global warming can no longer be denied with any semblance of accuracy. For very gradually, ranchers are seeing the grasslands they depend upon to feed their cattle begin to shrink and convert naturally to shrub land.
From the California Department of Fish and Wildlife (CDFW):
The California Department of Fish and Wildlife (CDFW) is hosting its third speaker series with a presentation on the effects of climate change on salmon and steelhead trout in the American River. The event will be held at the Nimbus Hatchery Visitor Center in Rancho Cordova on July 17 at 7 p.m.
From the Environmental Defense Fund EDF Voices: People on the Planet blog, in a post by Rebecca Shaw:
Nobody escapes climate change, especially not farmers. The report released this week by a group of prominent and politically diverse business leaders and public officials stood out, in part, because of the alarming losses it forecasts for America’s agricultural industry.
Climate change is likely to exact enormous costs on U.S. regional economies in the form of lost property, reduced industrial output and more deaths, according to a report backed by a trio of men with vast business experience.