Climate change in Cambodia presents major challenges for the country. Cambodia is highly vulnerable to the effects of climate change. Extreme weather events will occur more frequently; this includes floods, which already affect 90,000 residents annually, and heatwaves, with Cambodia already having one of the highest temperatures of the world. The temperature has increased since the 1960s by 0.18 °C per decade. It had the 7th lowest CO2 emissions in Asia in 2019.