Dumb ass. We have increased the amount of CO2 in the atmosphere from 280 ppm to 400 ppm. The amount of CH4 from 700 ppb to over 1800 ppm. That is significant, considering that 100 ppm of CO2 is the differance between an ice age, and an interglacial period. And that the amount of CH4 in the atmosphere has not been seen for many millions of years.
People like you keep repeating that meme, "contributing a tiny amount to the total", knowing that is is a complete lie.
How was that measured?
Has somebody been sampling the atmosphere for increases of CO2?
BTW, man has done more than pump GHGs into the air. He's deforested the Brazilian Rainforest and most of the continent of Africa is now nothing but desert. Could that have anything to do with it? And why are developing countries like Mexico exempt from Green Laws? They do much of the polluting?
From 1957 to present, directly from stations worldwide. Before that, from bubble in ice from glaciers, the Greenland Ice Cap, and the Anarctic Ice Cap.
Trends in Carbon Dioxide
Temperature and CO2 concentration in the atmosphere over the past 400 000 years | GRID-Arendal - Publications - Vital Climate Graphics
The deforestation of the Brazilian Rain forest is but one of many foolish actions by man. The desertification of North Africa has little to do with man. As the earth warmed from the last ice age, the Hadley cells expanded northward, even as they are doing now.
Mexico and the third world nations have in the past contributed very little to the rise of the GHGs. However, as you point out, that is changing, and needs to be addressed. As for their doing much of the polluting, although we outlawed PCBs here, we still produce that chemical and sell it to nations like Mexico.
