Water

Higher temperatures and a dearth of snow are extending the fire season

An ultraporous humidity sponge could provide 300 gallons of fresh water a day

Hotter, drier mountains leach more metal into streams from abandoned mines and natural deposits

Climate change is flushing more sediment into the rivers that pour out of Asia’s high mountains

The state is using the money to upgrade drinking and wastewater systems, improve streamflows, and relocate vulnerable fish

The severe dry conditions have left critical reservoirs depleted and helped fuel intense wildfires

Proposed legislation includes funding to redo badly out-of-date flood risk maps

In a proof-of-concept study, microscopic self-propelled devices found and broke down microplastic particles

The irony reveals the need for a greater mix of renewable energy sources

Seawalls and levees may simply shift rising water elsewhere—often into disadvantaged communities

An ocean-powered buoy brings technology closer to the dream of obtaining energy from the sea

Dry conditions have drawn down reservoirs, fueled massive wildfires and stunted crops