Global warming is rising Earth's surface temperatures over past 1-2 centuries. IPCC formed in 1988 to monitor climate change. Human activities since Industrial Revolution significantly influence climate
Climate change is a defining issue with unprecedented global impacts. Human activities since 1800s are main driver, primarily fossil fuel burning. Greenhouse gas concentrations have risen since Industrial Revolution. Global warming of 1.1°C above pre-industrial levels caused by fossil fuels
Earth's average surface temperature is approximately 59°F (15°C). 2023 was Earth's hottest summer since 1880. 2020 was second warmest year, behind 2016. Global temperature has risen 1.71°F (0.95°C) since 1880
UNFCCC was signed in 1992 by 154 states at Rio Earth Summit. Convention aims to limit dangerous human interference with climate system. Secretariat based in Bonn, Germany supports convention operations
NDCs are countries' commitments to reduce greenhouse gas emissions. Paris Agreement aims to limit global temperature rise to 2°C. NDCs must be updated every five years and registered by UNFCCC. Countries can cooperate and pool their NDCs
Global temperature has risen by 1°C since Industrial Revolution. Since 1981, temperature has increased 0.2°C per decade. Paris Agreement aims to limit warming to 1.5°C. China leads global CO2 emissions at 26%, US second at 13%