2023 is the hottest year on record in human history.
165438+20231October 30th, the World Meteorological Organization released the interim version of Global Climate Report 2023 on the opening day of the 28th Conference of the Parties to the United Nations Framework Convention on Climate Change, announcing that 2023 was the hottest year in human history on record.
In 2023, due to climate change and El Nino phenomenon, our average temperature rose by 65438 0.4 degrees Celsius. As we pointed out in the previous report, it is almost certain that in the next four years, we will at least temporarily increase the temperature by 1.5 degrees Celsius, and we may maintain this level in the next 10 years.
The report shows that the level of greenhouse gases has reached a record high, and the level of carbon dioxide in the atmosphere is 50% higher than that in the pre-industrial era. Sea level rise has reached a record high and is accelerating. Due to the continuous warming of the ocean and the melting of glaciers and ice sheets, the sea level rise rate from 20 13 to 2022 is more than twice that of the first decade recorded by satellites.
The harm of global warming
1. Increase extreme weather events: Global warming will lead to climate anomalies, including more frequent and severe extreme weather events, such as hurricanes, floods, droughts and rainstorms. These extreme weather events will cause serious damage to human society, agriculture, ecosystem and infrastructure.
2. Sea level rise: Global warming causes glaciers to melt, and rising sea temperature causes sea level to rise. Sea level rise will threaten coastal cities and islands in low-altitude areas, and make them face the risk of being submerged and coastal erosion. In addition, sea level rise will pollute fresh water resources and affect estuaries and groundwater.
3. Loss of biodiversity: Global warming has a negative impact on ecosystems and species diversity. Many animal and plant species can not adapt to climate change and become extinct or migrate, resulting in the loss of biodiversity. This will have a long-term and irreversible impact on maintaining the ecological balance and ecosystem function on the earth.
4. Agricultural impact: Global warming has a direct and indirect impact on agriculture. Rising temperatures and extreme weather events will adversely affect the growth and yield of crops, which may lead to food shortage and food safety problems. In addition, climate change will increase the risk of crop diseases and insect pests.