On his first day back in office as United States president, Donald Trump gave formal notice of his nation's exit from the Paris Agreement—a vital global treaty seeking to rein in climate change.

Paris climate agreement is not the boogeyman that critics such as President Trump claim, but it hasn't kept the world from overheating, either. Here's a closer look.

The youngest son of former Libyan dictator Moamer Kadhafi claims he was pressured to retract allegations about his country's ...