An estimated 35,000-50,000 protestors gathered for the "Forward on Climate" rally in Washington D.C. this weekend, making it the largest climate rally in US history. Protesters urged President Obama not to approve the Keystone XL Pipeline, citing fears that it will cause irreparable damage to our climate. Ed Schultz breaks down why it's important to confront the realities of climate change before it's too late.Feb. 19, 2013
