North Creek, NY, Feb 08, 2012 — It's been a big year for author and climate change activist Bill McKibben. His organization, 350.org, led a series of national protests against an oil pipeline from Canada known as Keystone XL.
Critics say the pipeline would accelerate carbon pollution. Last month, President Barack Obama rejected the project, sparking a fierce debate in Congress.
McKibben divides his time between North Creek in the Adirondacks and Ripton, Vermont. He sat down this week to talk in-depth with Brian Mann about the debate over global warming.
McKibben says this year's flooding and the unseasonably warm winter are symptoms of big changes that are already underway.