Rossini, did the "esperts" say how we do this. Did they say how we do it without destroying the economies of nations that depend on cheap abundant energy. Nations that, because of their economy, have the LUXURY to worry about things like global warming?
What do you think? Kill half the population and move into caves maybe? Just thinking out of the box.
Hey I know, how about solar energy? Oooh, wait, big problem. Seems like the energy it takes to mine the materials, manufacture, transport and install the solar panels is more than the panel will produce in its useful life.
Wind? Yeah, that's it. Darn, same problem, and the wind doesn't always blow.
Nuclear? Sounds good, oops, way too expensive.
Back to the cave idea I guess.