Last night a gas customer came in with his windows frosted over. I think it was just dew but I just checked the conditions of the past 24 hours on the weather website and it did get down to one degree above freezing and 100% relative humidity. If we did get an actual freeze at this time of the year, 1/3 of the world's food crops could fail... we are talking just 5 degrees colder then last night for one night mid-summer. You can be sure there will be massive starvation if that should happen in large areas. The effects of "global warming" is more specifically a wider temperature range so it is not just hotter in the day but colder at night too. Solution? greenhouses for every house... I cannot see a better way. I was just reading about water shortage potential too. 11% of water is for domestic use but almost all the rest is either energy production (cooling towers) for 1/4 and 2/3 going to some process of growing and preparing food... mostly for human foods. A very large amount of the energy use is also for agriculture purposes too so again the water use is indirectly used for getting food on your table... a personal greenhouse will eliminate all of that.