According to WHO, Earth has warmed approximately 0.85°C over the last 130 years — with each of the past 3 decades being successively warmer than any preceding decade since 1850. It will warm more than 3°C this century alone.

WHO also estimated that climate change will cause around 250,000 additional deaths per year between 2030 and 2050 — 38,000 from heat exposure in the elderly, 48,000 from diarrhea, 60,000 from malaria and 95,000 from childhood undernutrition.