claim: While members of the media may nod along to such claims [about changes in weather extremes], the evidence paints a different story
evidence: According to the Stern Review, inaction can be as high as the equivalent of losing at least 5% of global gross domestic product (GDP) each year, now and forever (upto 20% of the GDP or more when including a wider range of risks and impacts), whereas mitigating climate change will only cost about 2% of the GDP.