- Jan 8, 2001
With the decreasing cost of renewable energy production and storage (plus increasing energy density of storage systems); affordability will greatly improve in the next 20 years, except for special cases that I’ll omit for now.Necessity isn't particularly relevant. Cost absolutely is.
Something I'd like to point out is that a more carbon-rich and thus a more energetic atmosphere isn't necessarily a bad thing. What's bad is that we don't currently know how to effectively harvest that excess energy, and balance it to our environmental needs. But someday we will. Hopefully sooner rather than later, right?
Most of the heat energy is stored in the ocean. Setting up a 100M heat pumps in the worlds oceans will never be feasible.