CO2 was 315 ppm at the time. McKibben tells us that reducing CO2 to 350 ppm will stop glaciers from melting. Because he is a completely clueless, he is welcomed with open arms to almost all American universities.
CO2 was 315 ppm at the time. McKibben tells us that reducing CO2 to 350 ppm will stop glaciers from melting. Because he is a completely clueless, he is welcomed with open arms to almost all American universities.