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Under the agreement hammered out in 2015, the first day that countries can reverse the promises they made is Nov. 4, 2019. It will be another year before the American withdrawal is official.
Humanity is not on track to avoid the most catastrophic impacts of climate change. Delegations from nearly 200 countries are meeting to discuss promises they made to reduce greenhouse gas emissions.
The central U.S. just experienced the most widespread river flooding ever recorded there. Flood defenses in major cities largely performed well, but many smaller communities were simply overwhelmed.
When people who own dogs are stressed, their dogs also get stressed, a new study suggests. It’s another indication of how emotionally synchronized dogs and their humans can be.
Some panel members said they don’t agree that breathing sooty air can cause premature death. The panel’s draft recommendations to the EPA would change how it assesses the dangers of air pollution.
The U.N. climate meeting underway in Poland is the most important climate conference since the 2015 Paris Agreement set emissions reduction goals for nearly every country on Earth.
Modern birds are dinosaurs without toothy jaws, and with bigger brains. Newly published research fills in some of the missing links in their evolution.
In many parts of the world, it is illegal to shoot a brown bear with cubs. The restrictions have made mother bears more likely to spend an extra year with their cubs.