Grist: Yesterday, the Obama administration announced its proposal for regulating coal-burning power plants that for too long have been able to emit greenhouse gases with impunity. Theres a lot there to rejoice about, especially for people concerned about the most vulnerable communities - black, brown, elderly, and those of low income. EPA chief Gina McCarthy name-checked environmental justice in her announcement yesterday. President Obama linked the immediate threats of climate change to the asthma crisis...