Follow-up to Oscar-winning 'An Inconvenient Truth' finds eco-warrior politician fighting the good fight for our planet
Trump's EPA chief is gutting the agency, defunding science and serving the fossil-fuel industry
How the administration is systematically – and often quietly – weakening science in America
"The change that we need is not going to come from a politician, from an orangutan in office, it's going to come from something that's always been the driver of change – people power, power of young people"
"I thought there was a chance [Trump] would come to his senses, but I was wrong," former Vice President says
Ice shelf breaking free is a big deal, but not in the way you might think
Comedy legends talk Koch Brothers, renewable energy, former 'Late Show' host's retirement beard in 'Boiling the Frog'
In the wake of Trump pulling the U.S. out of the Paris Agreement, how serious are your elected leaders about fighting back?
'Last Week Tonight' host fact-checked president's Rose Garden speech
In pulling out of the Paris climate deal, Trump showed America is a clear and present danger to civilization itself
The move "undermines America's standing in the world," said Al Gore in the wake of Trump's Rose Garden announcement
In the farthest reaches of Antarctica, a nightmare scenario of crumbling ice – and rapidly rising seas – could spell disaster for a warming planet.
Saturday's protest might not change minds in the Trump administration, but it will be important nevertheless
Al Gore's 'Truth to Power' frames the urgency to combat climate change around impending policy threats
Pushing fossil fuels and killing climate rules will not keep America strong and safe