The removal of web tools that scientists and policymakers use to study global warming is a blow to the country’s physical and ...

Executive orders and announcements by President Trump have put billions of dollars in U.S. climate commitments into question.

Trump's pick to head U.S. intelligence has broken with its assessments several times since the Sept. 11, 2001, terrorist attacks.

Some of the moves could have major effects for climate change and climate technologies—for example, one of the first orders ...