People don't get the problem with global warming. It is not floods, or tornadoes, or temperture extremes, or melting of ice caps, or sea levels. All of that is important, but not the key. The real problem is one of the vapor pressure of water. Near room temperature (25 degrees celcius) an increase of 1 degree leads to an increase of 5 to 8% in the vapor pressure of water. That means that water evaporates at a rate 5 to 8% higher just by increasing the temperature 1 degree Celcius. If the entire atmosphere of the planet increases in temperature by 1 degree Celcius, then evaporation of water from the top soil will increase by 5 to 8%. That means that the soil will become drier than it already is. That spells a catasprophe in agricultural terms because some of the most fertile areas of the Earth (the Prairies) will yield a lot less grain if soil humidity decreases. This will lead to a terrible shortage of grain worldwide. As it is, grain prices are already at an all time high. A furthe increase will leave hundreds of million of people hungry. We will see famine on a scale that has not been seen since the 19th century. That is the real problem with global warming, the spectre of famine. Sea levels and ice caps are nice to worry about, but nobody seems to worry much about the poor of the world who will go hungry if something is not done. The problem is that those who speak of global warming do it from their own comfortable middle calss stance, and those oil, gas and coal companies that oppose global warming do it thinking only of their profit without caring about the fate of the poor. Nobody wants to talk about this because in our capitalist world thinking of the poor goes against individualistic, selfish profits for individuals.