What's the change between the weather before and now?

"Now the risks and impacts brought by climate change are even greater. Chao, deputy director of the National Climate Center, said that this summer, many places in China broke through the historical extreme high temperature. From the perspective of climate change, high temperature is the concentrated expression of climate warming. In the context of climate warming, the frequency of high-temperature heat waves will become more and more frequent in the future, and there will be more record-breaking situations.

For example, extreme weather and climate events are frequent and intense, water resources change, glacier retreat, snow melting, sea level rise and its impact on ecosystems are mostly physical effects. According to the Blue Book, in recent 60 years, the average annual precipitation in China has increased, but the average annual precipitation days have obviously decreased, indicating that the precipitation intensity has increased. In fact, people feel that there is less rain in Mao Mao, but there is more heavy rain and rainstorm.

At the same time, the impact of climate change will affect many systems, and it will also have adverse effects on the economy and society. For example, high temperature weather will adversely affect human health, epidemic prevention and control, and water and electricity supply.

In addition, climate change is manifested in different regions and fields to varying degrees. It may not be completely negative for some areas, but it will have a negative impact on China as a whole.