Weather in Yicheng of Xiangfan

On August 12, there was a rainstorm in Hubei, followed by a rainstorm in Suizhou and Xiangyang, even a very heavy rainstorm. The maximum rainfall in Banqiao Town, Yicheng, Xiangyang is more than 400 mm, and the urban rainfall is almost 300 mm, which has exceeded the meteorological record of Yicheng in previous years.

In July this year, extreme rainfall also occurred in Henan and Europe. Why have extreme weather occurred so frequently in recent years, and climate change has become more and more strange? What will the future climate be like? Today we will discuss this topic together.

1. Why do extreme weather occur in many parts of the earth?

The root cause of extreme weather is global warming.

The British "Guardian" mentioned that the latest ipcc report shows that the source of climate change is caused by human activities, and this influence has spread to all parts of the earth, even the atmosphere and oceans.

The ipcc report was written by hundreds of top scientists and then signed by governments. The conclusion of the report is that if human beings don't take the time to improve the climate and environment of the earth, once the temperature of the earth rises above 1.5 degrees Celsius, both human beings and the earth will face a very bad situation.

Since 1980, the number of rainstorm weather on the earth has become more and more frequent, and the melting speed of glaciers has been accelerating. At present, the ocean has added trillions of tons of water, causing the sea level to rise by 20 cm.

The report shows that the mild climate at the beginning of human civilization no longer exists, and the source of destroying this climate is a large amount of greenhouse gases emitted by human activities such as destroying forests and burning a lot of fossil fuels. At present, the concentration of carbon dioxide in the atmosphere has exceeded the highest record in two million years.

Since 1950, 90% of the earth has been suffering from heavy rain, flood and high temperature, and even in areas with relatively good environment, the phenomenon of drought is increasing. According to the report, if humans can't let the temperature drop, once the temperature reaches 4-5 degrees Celsius, the end of the world will come.

2. If human beings continue to emit greenhouse gases at will as before, what will happen to human beings after the earth's temperature continues to rise?

The article "The Future of Human Climate Niche" published in the Proceedings of the National Academy of Sciences mentioned the prediction of the future of human beings and the earth.

As usual, human beings will do nothing and will not migrate to other places, so the weather changes that human beings will encounter in the next few decades will far exceed those in the past 6,000 years. In 2070, the average temperature of the earth will reach 7.5 degrees Celsius, which will lead to land warming, and more than 3.5 billion people will face temperatures above 29 degrees Celsius.

That is to say, the temperature is very high every day. These people only live in summer, there is no spring, and there is no winter, and this phenomenon will become more and more serious and spread more and more widely.

In the next few decades, human climate niche will continue to move to high latitudes, but human beings will expand to low latitudes. Therefore, if the climate is really rising, the weather phenomenon in the future world will be very terrible and will have a very serious impact on mankind.

Third, how to reduce greenhouse gas emissions?

Greenhouse gases are related to energy, and to reduce emissions, human beings need to solve them from energy. First of all, human beings should convert energy into clean energy, such as wind energy, geothermal energy, bioenergy, solar energy, hydropower and so on.

Secondly, in terms of transportation, human beings should replace cars that use fuel with electric cars. In building heating, decarburization plan should also be implemented.

In addition, it is also very important to implement the sustainable development plan in the agricultural field. Strengthening the sustainability of agriculture is beneficial to the ecosystem, will not destroy the existing agricultural environment, and can still meet human needs for food and textiles.

Summary: Do a good job in forest protection, tree planting and water saving. It should be something that everyone should do. Only by pooling the strength of all mankind can we hope to change the global environment and climate.