Climate already affecting communities, and effects will get worse without action. The new report is designed to be “policy relevant,” but does not make specific policy recommendations, federal officials associated with the U.S. Global Change Research Program noted.

Bridges in London were forced to close Saturday because of protests against climate change organized by a group called Extinction Rebellion.

Case aims to compel the government to slash greenhouse-gas emissions.

Swiss native Hansjörg Wyss will give $1 Billion over the next decade to help accelerate land and ocean conservation around the world.

Finalists for the Environmental Protection Agency's (EPA's) Science Advisory Board include researchers who reject mainstream climate science and who have fought against environmental regulations for years.

For some researchers it's a personal choice; other academic departments have to pay carbon offset fees.

Scientists discuss a report aimed at keeping global temperature rise under 1.5C this century. The report will be the guiding light for governments as they decide how to develop their economies in the face of rising temperatures over the coming decades.

When asked why he changed his mind, Bridenstine told The Washington Post, "I heard a lot of experts, and I read a lot. I came to the conclusion myself that carbon dioxide is a greenhouse gas, that we've put a lot of it into the atmosphere, and therefore we have contributed to the global warming that we've seen."

The scientists, from the UK, Canada, Australia and other Commonwealth countries, warn that stronger measures are needed to keep global warming under 2 degrees.

French President Emmanuel Macron will award U.S. climate scientists with grants to conduct research in France for the remainder of President Trump’s current presidential term.