I think the notion is that if you control enough capital, you'll be able to relocate yourself and your family to those parts of the planet that are least impacted by the consequences of continued fossil-fueled global warming.

This also points to the problem with renewables from the capital viewpoint: they're just not as profitable, as you can't sell sunlight and wind or create artificial supply restrictions to jack up prices (which is the historical economic story of the oil & gas industry over most of the 20th century).