Climate Change in Portsmouth 12 indicators covering climate change for Portsmouth. IndicatorLatest Year10-yr change Rank Air temperature, hot days, tropical nights and icing days - Cities 11.51 Degrees celsius 2025 up 3.8% 710th Air temperature, hot days, tropical nights and icing days - Cities 0.8809 Degrees celsius 2025 up 91.2% 572nd Climate projections by scenario, 2030–2060 – Cities and FUAs 11.99 Degrees celsius 2060 up 0.6% 857th Climate projections by scenario, 2030–2060 – Cities and FUAs 1.47 Degrees celsius 2060 up 4.8% 1053rd Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0 Tonnes of CO2-equivalent 2024 — 1017th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.11 Tonnes of CO2-equivalent 2024 down 8.3% 664th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.05 Tonnes of CO2-equivalent 2024 down 28.6% 946th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.05 Tonnes of CO2-equivalent 2024 down 28.6% 924th Greenhouse gas emissions - Cities and FUAs — GHG emissions from power 0 Tonnes of CO2-equivalent 2024 — 790th Greenhouse gas emissions - Cities and FUAs — GHG emissions from road 0.11 Tonnes of CO2-equivalent 2024 down 8.3% 755th Greenhouse gas emissions - Cities and FUAs — GHG emissions total 0.31 Tonnes of CO2-equivalent 2024 down 13.9% 926th Greenhouse gas emissions - Cities and FUAs — GHG emissions from 0.11 Tonnes of CO2-equivalent 2024 down 8.3% 762nd