LANDING THE ECONOMIC CASE FOR CLIMATE ACTION WITH DECISION MAKERS

The report evaluates how governments and businesses are struggling to secure the financial resources needed to combat global warming while managing other priorities. However, inaction comes at a significant cost. Researchers have found that without intervention, global temperatures could rise by 3°C by 2100, potentially reducing cumulative economic output by 15% to 34%. Preventing this requires limiting greenhouse gas emissions and financing adaptation efforts. These measures would need an investment of just 1% to 2% of global GDP to keep warming below 2°C and mitigate most consequences. The net cost of inaction varies from 11% to 27% of cumulative GDP that could otherwise be allocated to global challenges such as healthcare and defence.