But the broad scientific consensus is that serious climate change is a danger, and this newspaper believes that, as an insurance policy against a catastrophe that may never happen, the world needs to adjust its behaviour to try to avert that threat.

ECONOMIST: Getting warmer

Each effort brings its own unique challenges, as lawmakers try to adjust benefits once considered sacrosanct.

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People could then adjust their lifestyle and diet, try preventative drugs, or take other action to reduce their risk of ever becoming sick.

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