“During the course of my presidency, I made climate change a top priority, because I believe that, for all the challenges that we face, this is the one that will define the contours of this century more dramatically perhaps than the others. No nation, whether it’s large or small, rich or poor, will be immune from the impacts of climate change. We are already experiencing it in America, where some cities are seeing floods on sunny days, where wildfire seasons are longer and more dangerous, where in our arctic state, Alaska, we’re seeing rapidly eroding shorelines, and glaciers receding at a pace unseen in modern times.”

Barack Obama on food and climate change: ‘We can still act and it won’t be too late’
https://www.theguardian.com/global-development/2017/may/26/barack-obama-food-climate-change
via Instapaper

Here's my take on this