Usually his writing voice sounds like he is frustrated, and his spoken voice can sound like he is feeling headed for defeat. Today there is a different sound and it is worth listening to:

This week, the Supreme Court rejected the Trump Administration’s request to expand construction on the Keystone XL oil pipeline, and the climate-change task force formed by Joe Biden and Bernie Sanders urged politicians to “treat climate change like the emergency that it is.” Bill McKibben, an activist in the environmental movement for three decades, joins Dorothy Wickenden to discuss whether the United States has hit a turning point in the battle against global warming.