Influential Republicans who no longer hold elected positions are working to change the GOP stance on climate change.
An expert panel recommends the US government launch a coordinated research program in case we have to take radical action.
As climate change causes unprecedented loss of Arctic Ice, the GOP and coal companies fight regulations.
The world's largest engineering organizations say there's a desperate need for financial, legislative support from governments.
Citing scientific consensus, she says the denial by GOP candidates is hard to take.
The US won't back a post-Kyoto treaty unless major developing countries are included.
Reducing black carbon soot and other climate forcers could reduce the pace of climate change 50%.
The majority of US companies are taking action on climate change, despite absence of mandatory rules.
The EPA announced it would not make its end-of-the-month goal for proposing new standards.
'24 Hours of Reality' is being streamed online, demonstrating the connection between the extreme climate events around the world.