Quote by Bill McKibben
"We've increased the CO2 content of the atmosphere by 40 percent since the beginning of the industrial age"
More from Bill McKibben
"The most important thing is to change the trajectory we're on"
"We need to think about climate change not as a future threat but as a present reality"
"Fossil fuels are the most important thing holding back the emergence of a more just and peaceful world"
"If it's wrong to wreck the planet, and it is, then it's wrong to profit from that wreckage"