President Trump will sign orders Tuesday to advance construction of the Keystone XL and Dakota Access pipelines, projects that the Obama administration halted out of concerns for the environment.
Last year was the third year in a row to shatter global heat records, a trend that scientists say shows 'big changes' are already underway.
Republican lawmakers are preparing to roll back the influence of the Endangered Species Act, arguing that the law is an unnecessary hindrance to economic development.
On average, Earth will have 10 fewer days of mild and mostly dry weather by the end of the century, researchers estimate.
The United States has contributed $1 billion total toward the UN climate fund. Will other wealthy nations follow?
Scott Pruitt has made a career of asserting states' rights against federal authority, primarily by suing the agency he may run. Now, he gets a chance to shift that balance.