This Year’s Floods May Be Good for California’s Salmon

In the mid-1990s, a scientist named Ted Sommer commuted routinely by bicycle between Davis and Sacramento, on the causeway that passes over the vast floodplain called the Yolo Bypass. At the time, state biologists had observed that numbers of Sacramento River fish...

America’s Aging Dams Are in Need of Repair

After two weeks that saw evacuations near Oroville, Calif., and flooding in Elko County, Nev., America’s dams are showing their age. Nearly 2,000 state-regulated high-hazard dams in the United States were listed as being in need of repair in 2015, according to the...