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I believe we need to greatly increase building solar farms in the desert (with sensitivity and relocation of endangered species there); likewise put far more resources into building offshore wind farms as well as more onshore wind farms. But in addition to building these energy generation facilities, we need to have energy storage so the "extra" energy from these sources is not wasted.
To facilitate a discussion, I jotted down the following timeline for reducing energy usage and (along with the increasing generation from renewable energy) beginning the end of fossil fuels. The following assumes that the $72 Billion we currently give to Big Oil is removed and using that to build more solar, wind, and energy storage adequate to make renewable energy available 24 hours a day. Let's discuss:
2011 -- Begin to reduce our use of energy in all ways possible, insulate our homes and buildings, close up any places where heat escapes (use caulk, spray foam, small pieces of insulation, etc.), switch to LED light bulbs, use solar hot water and solar air heating, plan trips in your vehicle wisely to avoid extra oil use wherever possible.
2015 -- Use geothermal heating and cooling and passive solar techniques in all new construction, energy reductions of 80% to 90%.
2020 -- If you haven't done so already, trade in your fossil burner vehicle for a clean, efficient electric vehicle.
2025 -- Begin wide scale construction of vertical farms to remove the 20% of oil that our current farming methods use. This reduces water consumption by 90% to 95%. It will also greatly reduce so-called "food miles" from transporting food thousands of miles, wasting oil and causing huge amounts of pollution.
2030 -- End the use of coal
2040 -- End the use of oil (with the exception of plastic that cannot yet be made by plants or algae at that time)
2050 -- End the use of natural gas
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