NYTimes - Environment

States are spending millions of dollars on cloud-seeding technology, backed by new data on its effectiveness — and driven by desperation for water.

The state seeks to block plans for significant water use restrictions over the next decade.

The president may disdain clean energy tech, but energy storage is also crucial for A.I. and defense — and China’s dominance in the sector has officials worried.

Bad harvests and attacks on trade passages threaten to drive food prices higher.

Arizona’s share of the river will shrink by a third, likely increasing reliance on groundwater and raising pressure on agriculture.

Ebola virus, hantavirus and the pathogen that causes Covid-19 likely jumped from animals to humans. So do these viruses — and scientists say climate change is speeding their spread.

Extreme temperatures and drought are adding to the stress on oak trees that have lived for hundreds of years and play a key role in the national imagination.

A summer swim in wild waters can bring escape and exhilaration. Here are six places on state and national park land across the United States to backstroke, butterfly or just beat the heat.

At least a half-dozen federal agencies have moved to undermine the state’s environmental efforts.

We know that trees are good for cities. A new study finds that mature trees are especially good.

At least a half-dozen federal agencies have taken action against the state that has led the nation in environmental protections.

Hundreds of aircraft traversing the North Atlantic will be asked to adjust their altitude in an effort to reduce heat-trapping contrails.

Levels in Lakes Mead and Powell have not been so low since 1957, underscoring a water crisis that plagues seven states that rely on the Colorado River.

The recurring climate phenomenon is poised this year to enter a new phase known as a super El Niño, exacerbating the effects of climate change.

The move to repeal the ‘roadless rule’ would pave the way for road construction and logging in nearly 45 million acres of untouched back country.

The rule to require efficient replacement tires was praised by environmentalists. But manufacturers warned that the change would hurt American companies and increase tire prices.

A federal judge ruled that the Trump administration broke the law when it approved a deal to allow a road through the Izembek National Wildlife Refuge.

The suit claims the U.S. decision to allow mining for minerals in American waters didn’t consider the potential harm to endangered species.

As water levels on the Colorado River fall to historic lows, a rafting trip through the canyon feels even more precious.

Record-breaking heat is the new normal. At Station 18 in Phoenix, firefighters are on the front lines tackling it — one bag of ice at a time. Watch the full Op-Doc “A New Inferno.”