There are multiple crisis's about to happen: Oil becomes too expensive (affecting infrastructure, transport, plastic production, etc), we use wood more heavily

There are multiple crisis's about to happen: Oil becomes too expensive (affecting infrastructure, transport, plastic production, etc), we use wood more heavily due to lack of plastic and cause deforestation, we can't build enough batteries due to materials demands for electric vehicles (which are needed more as oil cost increases), warmer climate increases need of air conditioning units (with some companies using banned CFCs to cut time/costs), water shortages, food shortages (due to water shortages and failed harvests due to climate)... The list goes on. Any combination of those would probably trigger a global economic collapse too (stock markets in chaos as "stable" markets suddenly become unstable). We're likely already past the point of no return, we should be considering plan B - which is: How do we live in an inhospitable world as a result of global warming? I think if we end up in such a state, the two most important resources to have will be energy and raw materials. If it were me, I would consider harboring precious metals (for building electronics, batteries, infrastructure, etc), building renewable energy sources, building nuclear power plants (particularly salt reactors - to take up any additional load), investing into nuclear fusion (it's quite close now) and making sure the military is well funded (you need to protect whatever benefits you have). If needs be, steal technologies to further your own capability as fast as possible. To keep your society in order, you would probably want to reduce any internal resistance, so slowly reducing freedom of speech and freedom of expression to keep things in order (i.e. control the internet). Additionally, you want to protect any area (land/sea/air/space) you have and claim as much additional resource intensive and/or strategic area you can get away with. If you're going down anyway, you may as well cause as much environmental damage as needed to further your own position in the end game. Currently the only Country that would be "ready" by this standard is China, but the shear number of people may be their downfall. The only benefit would be that as resources run out, you can reduce your numbers by claiming more resources with you military (and mandatory inscription) - with their deaths easing pressure on infrastructure.