People can argue that climate change will bring economic prosperity. This is supposed to arise because currently frozen areas will become less frozen, the northwest passage will open, and we can more easily obtain minerals and oil from currently inhospitable locations.
So, let’s be clear – there may well be parts of the world which do appear to get a strategic or financial advantage from climate change. That is indeed possible. That does not mean the rest of the world will not suffer severely, nor that the melting ice will not mean that sea levels will almost certainly rise impacting many communities, that mountain glaciers will almost certainly shrink lessening water supplies, that deserts will probably expand, and that existing farming areas may become less productive. It is also possible that this could cause global warfare as people fight over access to water and arable land.
Indeed, I might argue that one of our problems is that we live in an economic system in which fantasies of wealth are encouraged to take precedence over survival, or even over having a healthy eco-system. Wealth has become symbolically equivalent to life and happiness. However, there is no prosperity if a civilisation undermines the ecologies it needs to survive or flourish. With current trends of climate change, it would seem that there is only increased hardship for most people, whatever the new economic openings (at best – it is hard to predict what the worst could be).
The fantasy of boom, also tends to be unreal because our economic system is problematic. Since the 1980s it certainly does not look like the proceeds from economic booms have been shared around. They have mostly gone to particular, and very small, groups of people, while the problems of economic busts have been shared around. So an economic boom arising because of the artic opening up, or tundras melting, is not likely to help that many people, or compensate the rest of us for the climate becoming tumultuous and hard.
It is probably better to put the money and effort into stabilizing climate, before pursuing fantasies of gain.