Yesterday, 11:34 AM
One of the earlier posts in the thread had a link to data going back 1,000 years.
As to lengths and cost, what is the cost of not doing anything? What is the value of doing something? Who is building the windmill farms? Solar energy panels? Designing and creating radiant heating and other technology? If we want more jobs, this seems like a technology driven industry that should be good for the US job market.