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Johnnypenso the reason wind, solar, green etc are expensive is because WE AREN'T PAYING FOR FOSSIL FUELS. It is very simple, the price we are paying for petrol, gas, coal etc is not the real cost. Not by a long shot.
Could you imagine the REAL cost of petrol - the price we would have to pay for a continuous sustainable-unending supply of petrol? (suppose there was no oil under the ground)
Petrol is an amazing energy storage, it is very valuable, it takes an extremely long time to make - yet we pay less for it then a bottle of water.
Human, with all their science and gizmos have not yet made an energy storage medium anything of the level of qualities, density, stability, ease of use etc that petrol and similar fuels has and yet we still give it very little monetary value. It's an old mentality learnt from we didn't know better.
Btw solar and wind can be reliable, we also have tidal and geothermal to make use of. For large scale energy storage problem we have salt batteries etc (ie a for solar farm at night). To me Hydro is questionable (impact of damming).
Nuclear fission is a stop gap, fusion is still a long long long way away.
We can do stuff now or we can let or great grandchildren take care of it with greater haste (oh crap we're out of oil, now lets make some electric cars. Oh crap the ocean's dead, now lets stop pouring chemicals in it) and have much larger impact on their lifestyles.
Stuff is being done but IMO no-where near enough though. I wish people would get serious about this and stop playing 3year politics or bending over for the greedy and self-entitled.