But here's the thing - the worst of these consequences are not immediate. Yes, hundreds of millions of people will face water shortages and starvation by 2080 -- but only if those hundreds of millions of people are alive in the first place.
"The next section of an Intergovernmental Panel on Climate Change (IPCC) report, focusing on global warming impacts, is due to be released at a meeting in Belgium next month. A draft version of the report says that, within a few decades, hundreds of millions of people will face water shortages, while tens of millions will be flooded out of their homes. Tropical diseases like malaria will spread, pests like fire ants will thrive and by 2050, polar bears will mostly be found in zoos. By 2080, hundreds of millions of people could face starvation, according to the IPCC draft report."
What am I getting at? One solution to the crisis is for people to stop having so many babies. We're already using up the fisheries. The cattle being raised to feed so many meat-eaters is as big a problem as the cars we're all driving.
There is plenty of time between now and 2080 to dramatically cut the population of the world by simply limiting how many babies we're all having. If there are fewer people around then fewer people face starvation, disease, dislocation and the rest of the consequences.