"I note we are currently in a severe CO2 deficit situation"
Idiot. You are 5 cans short of a six pack.
If atmospheric concentrations of greenhouse gases double compared to pre-industrial levels, this would "likely" cause an average warming of around 3°C (5.4°F), with a range of 2 to 4.5°C (3.6 - 8.1°F).
For the first time, the IPCC is providing best estimates for the warming projected to result from particular increases in greenhouse gases that could occur after the 21st century, along with uncertainty ranges based on more comprehensive modeling.
A greenhouse gas level of 650 parts per million (ppm) would "likely" warm the global climate by around 3.6°C, while 750 ppm would lead to a 4.3°C warming, 1,000 ppm to 5.5°C and 1,200 ppm to 6.3°C.
ens-newswire.com
The CO2 level in the future decades, 500 to 700 ppm, will induce a seawater
acidification of -0.20 to -0.32 pH unit, equivalent, according to these
data, to a stress of 2.8°C to 4.5°C, in addition to Global Warming. This is
a tremendous change. Given observed damage to reefs (Wilkinson, 1998), 90%
to 99% of photosynthetic symbiotic organisms may die, and reefs as they are
known today will disappear. Thus, strong mitigation of anthropogenic CO2
increase is urgent.
coral.aoml.noaa.gov |
