Text Box:
Intergovernmental Panel on Climate Change (IPCC) 2018 Global warming of 1.5 °C: Summary for policymakers. Geneva IPCC.12  IPCC 2018 Special Report-Global Warming of 1.5 °C asserts that emissions of carbon dioxide (CO2) caused by human activity must reach “net zero” by 2050 to keep the average rise in global temperature at 1.5 °C above preindustrial levels to reduce catastrophic climate change risk on populations. The Report highlights that “temperature extremes on land are projected to warm more than the global mean surface temperature (high confidence); extreme hot days in mid-latitudes warm by up to about 5 °C at global warming of 1.5 °C and about 4 °C at 2 °C, and extreme cold nights in high latitudes warm by up to about 4.5 °C at 1.5 °C and about 6 °C at 2 °C (high confidence). The number of hot days is projected to increase in most land regions, with the highest increases in the tropics (high confidence)”.