The world's richest man is strong supporter of right-wing politics, & made gestures today at a rally for Donald Trump's second inauguration that's caused controversy

Our research shows that Republican leadership can reduce partisan divisions on climate solutions more effectively than Democratic leadership.

The move announced Monday is a blow to worldwide efforts to combat global warming and distances the nation from its closest allies.

Trump calls climate change a hoax. But at the state level, the climate fight will continue — or even accelerate.

Donald Trump has already taken radical new stances on Greenland and the Panama Canal. What do security experts predict he'll do in the Pacific?

President Donald Trump on Thursday threatened business leaders with higher tariffs and vowed to “demand” lower oil prices from OPEC and lower interest rates from central banks in a boast-filled address to the World Economic Forum in Davos, Switzerland.

Most major economies are investing in ever-cheaper solar and wind power. The United States risks further ceding a global market to China.

The US president has already declared a national emergency at the border, as he begins his crackdown on immigration.