Brentin Mock writes for Colorlines: “During his first term, President Obama did make climate change a priority, both in his campaign and in office. The American Clean Energy and Security Act that Congress produced passed through the House in June 2009 by a narrow margin. Yet the bill never reached a vote in the Senate, and it died quietly. Environmentalists have been flummoxed ever since. One prominent cause-of-death theory says that large mainstream (and predominantly white) environmental groups failed to mobilize grassroots support and ignored those who bear a disproportionate burden of climate change, namely poor people of color.”