A C02 concentration below 350 ppm in the atmosphere is what leading scientists agree is safe for humanity. We’re above 390, and climbing. I’m a mother, an educator, and a former registered nurse, concerned about climate change.
RT @TucsonPeck: Heard in OZ - is climate change a moral issue? Is it ok for big carbon emitting countries to submerge other countries w/ se…*sent* 33 minutes ago