A technology startup near Ontario's leafy border with Michigan says it has the answer to the world's plastic pollution problem: sawdust.

Europe is facing a second heatwave this summer, just weeks after the hottest June on record, intensifying concern over climate change and the rise in extreme weather events.

The University of Alaska's leadership in climate science could be threatened by budget cuts made through Republican Gov. Mike Dunleavy's vetoes, according to a researcher at UA Southeast.

A federal court has again sided with plaintiffs suing oil and gas producers for what a district judge called "our once and future climate crisis."

Oregon's iconic Douglas firs are declining as the state's summers have grown hotter and drier.

Is the most destructive Mississippi River flood in nearly a century coming to an end? Possibly, experts say. But don't take your eyes off the levees.

The United States needs more accurate and detailed ways of measuring the potential damage from flooding and hurricanes as climate change intensifies the effects of both, a panel of experts testified at a congressional hearing yesterday.

Major U.S. cities may be leaking far more methane into the atmosphere than government estimates suggest.

To witness the transformation of America's power sector, go to Texas.

Legal risks for the government and companies could grow as scientists improve their ability to link human-caused emissions to specific disasters.

Researchers in Mexico say they have discovered five previously unknown coral reefs off the country's Gulf coast.

Europe's carbon market is nearing the psychologically important threshold of 30 euros ($33.70) a ton after signs the region will tighten rules on polluters and curtail supplies of allowances.

On an exclusive Connecticut peninsula, where signs warn outsiders to stay off private roads, eight multimillion-dollar homes with sprawling yards along Long Island Sound are poised to become eligible for taxpayer-funded disaster aid.

At Wrigley Field, misters in the back of the bleachers tried to cool the crowd. At Yankee Stadium, only one player took batting practice on the field. In Cleveland, rules were relaxed on what fans could bring into the park.

Climate change is threatening the existence of some species, according to a global inventory of biodiversity that warns the plight of the world's endangered plants and animals is worsening.

Northeastern states are engaged in a game of renewable one-upmanship.

Congress is moving closer to requiring for the first time that all prospective homebuyers and tenants be told the flood history of a property they are considering purchasing or renting.

Environmentalists say one topic should take center stage at the Democratic presidential debates in Detroit next week.

The Trump administration's attempt to overhaul the way EPA does science may not have a long shelf life, according to former officials.

An uneasy alliance between airlines as they face down criticism over carbon emissions has collapsed into a high-profile dispute involving Europe's biggest network carrier and largest discounter.