Detailed text transcripts for TV channel - MSNBC - 20130629:00:33:00
Environment lists who do, say, look, we have carbon emissions at an all-time low -- not an all-time low, obviously, not an all-time low, but at a low recently. we've seen carbon really fall off the cliff and it's because of natural gas. what role does methane play in how we understand whether this is good for the climate? >> that's a great question. methane is the second most greenhouse gas. it also warms the planet much faster, it dissipates much quicker. methane in the 20-year timeframe, the next two decades, it warms the atmosphere 80 to 105 times more than carbon dioxide does. you need 80 ...