As major UN talks kick off in Paris, the president acknowledged America’s role in causing global warming.
Diplomats and scientists are descending on the French capital Monday. They’ll try to save the world.
Watch: Obama’s Top Environmental Official on the Paris Attacks and Why Climate Change Threatens National Security
Two weeks before the Paris climate talks, EPA Administrator Gina McCarthy says the US is serious about taking action.
We’ll know Wednesday or Thursday whether or not the big climate march in Paris will go ahead.
It’s an area half the size of Rhode Island.