How much of the Worlds surface is Land? Of that, how much is occupied by Humans? After you answer those questions, what is the percentage of the living Humans that are actively involved in reducing so called Global Warming? Now, tell me what effect you think those efforts will have on saving the Planet from so called Climate Change?
No one ever mentions the contributions of the ocean and volcanic emissions to the calculation "historically".
Even further, how much of the land is undeveloped prairies, uninhabitable deserts, mountains and polar ice where no humans live?
Well that was interesting.
Total sq Miles = 196,600,000
Ocean = 139,586,000 (71%)
Land = 57,014,000 (29%)
Land that is “artificial surfaces” & crops = 7,525,848 (3.828%)
(http://www.fao.org/uploads/media/glc-share-doc.pdf)
Population = 7,500,000,000
Avg Acres / Person = 0.642 (if everyone was distributed across all the artificial surfaces & crop land)
Not sure what that proves, but we’ve impacted ~3.8% of the earth’s surface, That’s most likely a low estimate.