Climate Change in Mercer 12 indicators covering climate change for Mercer. IndicatorLatest Year10-yr change Rank Air temperature, hot days, tropical nights and icing days - Cities 15.08 Degrees celsius 2025 up 22.5% 420th Air temperature, hot days, tropical nights and icing days - Cities 3.13 Degrees celsius 2025 up 782.4% 220th Climate projections by scenario, 2030–2060 – Cities and FUAs 15.2 Degrees celsius 2060 down 0.4% 544th Climate projections by scenario, 2030–2060 – Cities and FUAs 2.31 Degrees celsius 2060 down 2.4% 161st Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.01 Tonnes of CO2-equivalent 2024 unchanged 695th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.64 Tonnes of CO2-equivalent 2024 down 8.6% 184th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.61 Tonnes of CO2-equivalent 2024 up 13.0% 316th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.58 Tonnes of CO2-equivalent 2024 up 11.5% 317th Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 0.56 Tonnes of CO2-equivalent 2024 up 40.0% 253rd Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 0.8 Tonnes of CO2-equivalent 2024 down 1.2% 221st Greenhouse gas emissions - Cities and FUAs — GHG emissions total 3.07 Tonnes of CO2-equivalent 2024 up 4.8% 262nd Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.83 Tonnes of CO2-equivalent 2024 unchanged 216th