More than couple of hundreds environmental scientists gathered together to devise and propose a solution for stopping or radically slowing down the process of the global warming but they found they couldn't propose anything but forecasting what our ecology will look like around 2020. By then we will have some pieces of lands in Canada and Russia for farming and all other areas will be just deserted lands of no harvest. They expect that the warming process will get much accelerated as Tundra area in Siberia starts melting so that enormous volume of methane gas fumes into the atmosphere and at the same time gas contained in the oceans starts evaporating into the air. Farmers in Australia already have been panicky for the worst draught for last 50~ 100 years or so depending on the region. Desertization of Gobi and Sahara is already a well-known mundane story.
Nano-technology which can apply for converting sea water into fresh water by filtering salt components out on molecular level costs still too much and no rich countries or big corporates are serious enough to spend money.
Apart from scientific point of view over the purely ecological reality, it's gloomier to see the things happening in the villages on earth... totally do not know where we are headed to..
Do you know where're you going to?