Ahead of the 21st UN climate change conference in Paris, more than 170 nations submitted plans to cut greenhouse gas emissions. But experts say the proposed targets end up falling far short of what is needed to mitigate against drastic heating of the planet, and that the agreements during the negotiations are not likely to be binding. “Democracy Now!” discusses what’s at stake in Paris and how activists are responding with bestselling author Naomi Klein, author of “This Changes Everything: Capitalism versus the Climate.”