UK Experts Warn: Underpreparing for Climate Risks Costs More Than Overpreparing

Leading experts across climate, nature, health, national security, and financial risk are urging the UK government to adopt a more integrated approach to assessing climate and nature risks. In a commentary published in Nature Climate Change, they caution that conflicting advice from different fields can give policymakers inconsistent pictures of how severe future risks may be, making it difficult to decide how urgently to act and how much to invest. The authors argue that the cost of underpreparing for severe climate impacts is likely to be far greater than the cost of overpreparing. By bringing together diverse expertise, the government could better understand the interconnected threats and avoid costly mistakes. This matters because the UK faces rising risks from extreme weather, ecosystem collapse, and related economic and security challenges. The experts emphasize that a unified, cross-disciplinary risk assessment would help ensure that spending and policy decisions are based on the full range of potential outcomes, rather than fragmented or overly optimistic scenarios. As climate impacts intensify, the need for coherent, forward-looking planning has never been more urgent.