So, the earth has warmed before…but relying on this fact alone is not the entire story, the real story all but renders this fact a lie when entirely examining the truth about anthropogenic #climatechange
"The natural source and sink can be out of balance, as when India was cruising through the Indian Ocean [through the Paleocene-Eocene Period], by typically one ten thousandth of 1ppm per year [0.00001 ppm per year]. In a million years such an imbalance changes atmospheric carbon dioxide by 100 ppm, a huge change"
"But humans, by burning fossil fuels, are now increasing atmospheric carbon dioxide by 2 ppm per year [2.00000 ppm per year]. In other words, the human climate forcing is four orders of magnitude - ten thousand times - more powerful than the natural forcing. Humans are now in control of future climate, although I use the phrase "in control" loosely here." Hansen
#auspol #greens #environment #sceptic