Its seriously bad, and we still argue about electric cars and profitability of solar power: Methane is powerful enough to create rapid warming feedback loop that cannot be stopped by current means(unless the world economies are changed overnight), there is a model that shows +6C warming effects if methane reaches 1000ppm(2000 Gt release): http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-11-00533.... Notice the predictions of methane release from 2013 are on track: https://www.theguardian.com/environment/earth-insight/2013/a...