lee wrote on Feb 9
th, 2016 at 2:03pm:
Chimp_Logic wrote on Feb 9
th, 2016 at 1:30pm:
And what makes it a unique driver is the fact that it is anthropogenic in nature.
Have you found any historical data that can match the rapid rate of CO2 increase in the Earth's atmosphere that occurred over the past century or so?
1. So ocean outgassing of CO2 is anthropogenic? Contributions by forests and plants generally?
The IPCC says that it wasn't until the 2nd half of the 20th century that CO2 had a measurable affect on temperatures.
Note 1920-1940 when CO2 was not supposed to have a measurable effect. Note the slope - rate of change.
1. I said that did I?
are you deliberately confusing natural CO2 cycle with anthropogenic sources?
Its true that CO2 is released by the earths oceans, but the oceans also re-absorb CO2. To do you understand the net effect of Ocean CO2 diffusion?
the same applies to land and vegetation CO2 release and re-absorption.
Land and vegetation can release 439 GT of CO2 but re-absorb 450 GT each year. Oceans can release 332 GT of CO2 and re-absorb 338 GT.
Human activities contribute about 30 GT of CO2.
Do you understand why the CO2 levels have been increasing in the earths atmosphere?
The analysis of radio-isotopes relating to fossil fuel combustion confirm where the CO2 in the earths atmosphere is coming from. Add in the de-forestation effects and ocean warming and you have a serious problem for the earths inhabitants going forward
Especially problematic for the earth's young and dependent - the children.
The children lee - we must look after the children and the health of the planet that they will inherit
think of the children lee
the children