Atmospheric CO2 concentration has exceeded the pre-industrial levels by about 40% (IPCC 2013) and is projected to double during the second half of this century (Solomon et al. 2007).
Atmospheric CO2 concentration has exceeded the pre-industriallevels by about 40% (IPCC 2013) and is projectedto double during the second half of this century (Solomonet al. 2007).