A recent study by noted climate scientists is particularly bad news for the planet’s most vulnerable regions, including the Arctic and small Pacific islands. 

The conference in Poland will be a major test of the world’s collective political will to fight global warming. Following through on promises made in Paris will not be easy.

Congress is considering a bill that could punish countries for artificially boosting oil prices. What could that mean for warming ties between Russia and Saudi Arabia?

With significant risks now looming over global energy markets, the United States should be careful not to go too far with oil sanctions.  

The narrow and congested Mideast waterway has become a site of escalating U.S.-Iran tensions. Conflict in the wake of tanker attacks there could jolt global oil supplies.