For the average person in a war zone – in Kyiv, say, or Khan Younis or Khartoum – daily life is more dangerous than in conflicts past. Your water supply could be cut. Or an exploded dam could flood your uncle’s place in the countryside. Not to mention being killed in a drone attack while at the hospital. … That disturbing trend is reflected in water-related conflict, said Peter Gleick, author of When the Well Is Dry, a new book on water, violence, and peace. … In When the Well Is Dry, Gleick traces the shifting patterns of conflict and violence over water. Natural resources have always been a source of tension. But norms about what targets are off limits are eroding. And climate change is upping the ante, with higher temperatures and more extreme droughts increasing competition for water.