"Simply abandoning costal property" and "rezoning" on a global scale is already going to be a far worse impact on what we consider today as modern life, than an

"Simply abandoning costal property" and "rezoning" on a global scale is already going to be a far worse impact on what we consider today as modern life, than any realistic actions against CO2 would have been. We are talking about moving hundreds of millions of people. Sure that is entirely possible, but tell that to people who seem to be scared of helping a million Syrian war refugees. Fortunately, with recent progress in renewal energies, achieving a massive reduction in CO2 emissions does not require hardship, just a larger investment program (which will pay even off long time for most countries, due to no more money drained from the economy for oil). This investment would be comparable to the building of the US highway network in the 50ies and 60ies. Long term it was a huge boost to the American economy.