IMVHO we need to stop pretending give numbers, especially in very short range to nature. Talking about a certain amount of temperature is like saying that today here there are 7h of sunlight so my p.v. should have produced a certain amount of energy and self-consumption should be better than the 5h of yesterday. Such numbers even if real they are meaningless because for instance in the above example yesterday there was less Sunny hours but those was continuous and fully sunny so far better for self-consumption than yesterday. Similarly at another scale it's meaningless talking about how many millimeters of rain hit a certain area per year, if they hit all in few weeks this area is not that nice respect of a dryer one but with regular alternation of sun and rain. Long story short instead of play with meaningless math let's try a more realistic path.<p>Today we have ONE energy production tech witch constant and not much pollutant in normal conditions, witch is nuclear fission. We can't improve it in less than 10 years IF and only IF is the public who do that at 100%, no private business involved (otherwise 20+ year if we ever arrive to something usable). In the meantime the less pollutant is methane. p.v. can do much in certain area and to use it for sure we need to erase the idea of tall buildings and apartments pushing people toward single-family modern homes (insulation, p.v. etc) with investments on energy saving (for instance big water heaters with classic resistance BUT also a heat-pump for non-sunny days, big enough to withstand a day or two without Sun and without energy need keeping water hot enough) and LOCAL smart MICRO-grid like wishing machines, dishwashers, ovens etc who can talk a simple modbus-alike protocol to talk to an inverter and decide how to run to maximize self-consumption for instance. Such kind of evolution is possible and far quicker than new nation-wide electricity grids and mega-projects.<p>In ten years we can have remote workers and retirees in such setup, witch might be not so much, but it's a thing. In others ten years others people have migrated, nuclear is fully on-line, renewable have replaced methane enough. Society is changed sufficiently to reduce the need of methane-made fertilizers, and agrobusiness was annihilated for the sake of humanity so we start to have less pollutant and more sustainable agriculture, a new western society is seeded. Others will adapt in another ten years. In 50 years we have done enough to survive the change without a world war and a mass genocide.