Rich humans will be the ones for whom it'll be most easy to avoid the consequences of climate change for a long time. By the time rich people really start suffering we'll probably be way past the point of no return.
Actually it's poor people who suffer both short and long term consequences the most. To tell you the truth I wouldn't even notice if my electricity bill went up by 20% because of switching to renewables, as I don't know how much it is usually.
