Michael E. Mann

When documentarian Josh Fox realizes, after much soul searching, that the answers for how to respond to the degradation of our environment cannot ...

After one of the hottest years on record, Sir David Attenborough looks at the science of climate change and potential solutions to this global ...

Bill Nye is retiring his kid show act in a bid to become more like his late professor, astronomer Carl Sagan. Sagan dreamed of launching a ...