Climate change is real. Climate change is being substantially increased by humans and the carbon we put into the atmosphere. And it appears to be speeding up. If science has made any mistakes, science has been underestimating it.

The 'New Yorker' asked me to shoot a story on climate change in 2005, and I wound up going to Iceland to shoot a glacier. The real story wasn't the beautiful white top. It ended up being at the terminus of the glacier where it's dying.

The evidence for human-made climate change is overwhelming.

We can't take climate change and put it on the back burner. If we don't address climate change, we won't be around as humans.

Climate change should not fundamentally be seen as a political or partisan issue, but it has been turned into a political football primarily by the climate deniers who have a vested interested in maintaining the status quo. That includes certain industrial interests, financial interests and political interests.

The effects of climate change are real and must be acted on.