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 @Urban_Su: Typical. Harpercons insist Justin return $$ but only one charity has said they want him to. The sponsor who paid for him does…*sent* 9 hours ago