There are also potential surprises that the global climate system might have in store for us, exacerbating future climate change. These include the very real possibility that global deep-ocean circulation could alter, plunging Europe into a succession of extremely cold winters or causing unprecedented global rise in sea level. There are predictions that global warming may cause vast areas of the Amazon rainforest to burn, adding extra carbon to the atmosphere and thus accelerating global warming. Finally, there is a deadly threat lurking underneath the oceans: huge reserves of methane which could be released if the oceans warm up suf?ciently – again accelerating global warming. The ?nal chapters look at global politics and potential adaptations to global warming. It should be realized that the cost of signi?cantly cutting fossil-fuel emissions may be too expensive in the short term and hence the global economy will have to become more ?exible and thus adapt to climate change. We will also have to prioritize which parts of our global environment to protect.