Then there is the draining of long term regenerated aquifers and capped no recharge aquifers. The San Joaquin, Columbia, and the once great Ogallala will be gone before 2040, with extreme reduction in yields from their loss, typical around the world.
Then we have the loss of crops in one out of every three years from climate fluctuation beyond historic by then.
The intensive agriculture to feed overpopulation also produces 30% of HGHGs, so with the necessary 90% reduction to stop continued runaway, all farming must be local. No more distribution by diesel, or huge tractors and combines.
Right now northern China and India have large areas of sterilized soils only holding up crops nourished incompletely by petro-chemicals. Completely devoid of organics. Other smaller areas have the problem also, like Idaho.
Then, there is still increasing demands from overpopulation getting worse and people wanting a better diet. What most are getting is not a better diet but one with more and more additives that, with water pollutants, is driving the 30% obesity epidemic worldwide. Changes like corn bigger than rice now in China, are bringing even more intensive petrochemicals and water use.
It all leads to less food on average per capita to below sedentary starvation level average, conflicts over water and food scarcity, and crashing, migrating populations desperate to escape to where there is more food and water and less or no warfare. They overload the economies of the host nations driving economic depression, which continues the crash from mass starvation.
It is unfortunate that 2040 comes after crossing the tipping point of tundra methane releases rapidly increasing temperature beyond the worst case scenarios of most. So those survivors will have a more and more difficult time surviving until the surface is too hot for most species to survive, and what organics are left in the world's soils release their CO2.
Certainly not a good way to treat your home planet's biosphere, of which the soil is an integral part.Statistics: Posted by Johhny Electriglide — Tue May 05, 2015 12:32 pm
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