CLIMATE change can no longer be viewed merely as an environmental problem; it is now driving up poverty, a new World Bank report says. It warns that if emissions continue unabated, an additional 43m people could be pushed into extreme poverty by 2050. That figure may even rise to 150m if income inequality also deepens. It is abundantly clear that the world’s poorest and least prepared countries will suffer the most. The report discusses two high-emission scenarios. The first — called SSP5 — imagines rapid global economic growth powered by fossil fuels, but with no serious effort to cut emissions. The second,........

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