The Cost of Inaction 2024

Frequency and intensity of extreme events rise with temperature FIGURE 3 Some regions will suffer more than others – a glimpse of a 3°C world FIGURE 4Increase in frequency and intensity of extreme events1 under different warming scenarios x for increase in frequency, °C for increase in temperature, % for increase in precipitation intensity 1.0x2.8x 1.3x4.1x 1.5x5.6x 1.7x9.4x 2.7x +1.2°C +7%+10%+14% 0°C (1850-1 900 average)+1°C +1.5°C +2°C +4°C Global warming scenariosCurrent temperature increase +1.9°C+2.6°CHotter temperatures Increase in precipitation +30%+5.1°C Average temperature Change in total annual precipitation Likelihood of 1 year-plus droughts Change in frequency of historical “1-in-100-year” stormTemperature (0C) Change in precipitation (mm) No data -30 — 0 1 — 7 8 — 14 15 — 25 26 — 31 32 — 60 No data < -100 -100 — -51 -50 — -26 -25 — +24 +25 — +49 +50 — + 1 00 > +100 Annual likelihood (%) No data 0 — 10 11 — 33 34 — 50 51 — 67 68 — 90 91 — 100Times more/less frequent No data < 1 1 2 3 — 4 > 4 1. Vs. 1850-1900 average; variation in frequency and intensity for extreme heat event or 1-day precipitation event that occurred on average once every 10 years in a climate without human influence. Source: Intergovernmental Panel on Climate Change (IPCC). Source: Adapted from the Probable Futures climate tool. The Cost of Inaction: A CEO Guide to Navigating Climate Risk 7 Note from designer: Please confirm the comment made about aligning colour scaling on the bottom two charts.