​全球气温变化情况

全球气温变化情况

23 October 2022

自1850年以来，全球平均气温增加0.9－1.2摄氏度，主要是源于人类活动。该数据来源于政府间气候变化专门委员会(IPCC)。大部分气候变暖发生在1975年后，变化速率为每10年增加0.15－0.2。

2021年平均气温比20世纪平均气温高1.3度。

但是大部分人生活在比全球平均气温还高的地方。这是因为大多数人生活在城市，公路和建筑物聚集热量，城里树很少。树是能使地区变凉的。

The average global temperature has increased between 0.9 and 1.2 degrees Celsius since 1850, mostly because of human activity. Those numbers come from estimates in the most recent report by the Intergovernmental Panel on Climate Change, or IPCC. Most of that warming has happened since 1975, at a rate of 0.15 Celsius to 0.2 Celsius per decade.

The average temperature in 2021 was 1.3 degrees higher than the 20th century average.

But most people are living in places where the temperature has increased more than the global average. That is because more and more people are living in urban areas. These areas can trap heat because of the many roads and buildings and because they have fewer trees. Trees help make an area cooler.