Why is the weather getting hotter every year?

The reasons why the weather is getting hotter year by year: global warming, greenhouse effect, persistent La Nina events, natural feedback mechanism, climate variation and extreme weather events.

1, global warming

It is a phenomenon related to nature due to the sharp increase of greenhouse gases such as carbon dioxide in the atmosphere. Due to the continuous accumulation of greenhouse effect, the energy absorbed and discharged by the geo-atmospheric system is unbalanced, and the energy is accumulated in the geo-atmospheric system, which leads to the increase of temperature. Global warming is also related to the greenhouse effect.

2. Greenhouse effect

The atmosphere can make the short-wave radiation of the sun reach the ground, but a large number of long-wave radiation rays emitted by the ground are absorbed by the atmosphere after being heated, which makes the temperature of the ground and the lower atmosphere rise. Because its function is similar to the greenhouse for cultivating crops, it is named the greenhouse effect.

3. The continuing La Nina incident

La Nina is the opposite phenomenon of El Ni? o, that is, the seawater temperature in the cold water area of the equatorial Pacific Ocean is abnormally reduced. In July, 2022, the warm and high-pressure areas in the mid-latitude regions of the world continued to accumulate and developed rapidly, which led to unusually high temperature weather in a large area of the world. The temperature generally rises by 3-5 degrees, and some even higher, which brings great discomfort to people's production and life.

4. Natural feedback mechanism

Rising temperatures may trigger natural feedback mechanisms, further aggravating climate change. For example, melting glaciers will reduce the ability of the surface to reflect solar radiation, thus accelerating the surface to absorb solar energy; At the same time, melting glaciers will also release greenhouse gases stored in them.

5. Climate change and extreme weather events

Global temperature rise will also lead to climate change and the increase of extreme weather events. These events include more frequent and intense heat waves, droughts, rainstorms and hurricanes, which further aggravate the impact of high temperatures.