"Cheap and dirty energy is not cheap for the planet or the health of our people. When green taxes are incorporated into our climate policies, we can harness market forces that can lead to profound changes in our emissions patterns." -- Chilean President Michelle Bachelet, at the Paris climate summit.
"I felt like my lungs were blocked. We have to stand in the open for many hours a day, and the pollution really affects us." -- Xu Pengfei, a security guard at a downtown office building in Beijing, where air pollution has reached hazardous levels.
"Our policy makers haven't grappled with the realities, and it's to the detriment of coal communities. When the new economy started taking off, it left West Virginia behind." -- Ted Boettner, executive director of the West Virginia Center on Budget and Policy, on the diminishing coal economy in Central Appalachia.