Researchers say that with the soaring global ocean temperature and the arrival of El Ni? o in the Pacific Ocean, 2023 may become the hottest year on record, and the earth is moving towards "unknown territory".
Some experts said that although summer is a hot season, this year's high temperature is a record high temperature. Why is there such an unusually high temperature this summer?
There are extreme weather process factors in the short term, especially this year, which are mainly affected by subtropical high. Under normal circumstances, hot air will rise into the air, but in summer, many places are very hot and all the air wants to rise. The air is already crowded. If there is a high-pressure belt floating at this time, the hot air on the ground will not get up. Can it not be hot when piled on the ground?
This high pressure is the Iranian high pressure. In the past, the Iranian high pressure was generally blocked by the Himalayas, but this year, the Iranian high pressure forces rose sharply and suddenly crossed the Himalayas to China, joining hands with the original continental high pressure and subtropical high pressure in China to suppress hot air.
In the long run, this is the embodiment of global warming. The reason why Iran's high pressure suddenly becomes stronger is actually the climate instability caused by global warming. In fact, in recent years, the instability of the global climate system has intensified, extreme weather and climate events have occurred frequently, large-scale, intense and concurrent climate anomalies have become more persistent and frequent, and more areas are experiencing more complex extreme events.
What impact will extreme high temperature weather have on the economy?
The first thing to bear the brunt is agriculture. If the grain production is reduced, the price may rise again. In fact, it has been reported recently that there has been a serious shortage of rice for 20 years. One of the factors is climate. For example, last year, rice production in Guangxi and Guangdong in our country was reduced due to drought, and Pakistan is a big rice trading country in the world. Last year, due to floods, rice production plummeted by 365,438+0%. Then, extreme high temperature weather will also lead to some other bad weather, such as rainstorm and typhoon, and will also cause flash floods and mudslides, so it will not only affect the planting industry, but also affect the aquaculture industry, which means that the whole agriculture, forestry, animal husbandry and fishery sector will be affected.
The second impact is the power shortage. When the weather is hot, the electricity consumption will increase sharply, because everyone has to turn on the air conditioner, but because of the high temperature, it will lead to drought. For example, last summer, Sichuan, a major hydropower province, was unable to generate electricity due to high temperature and drought, resulting in power shortages in many areas.
The third effect is that you can't do the work. High temperature will bring great burden to people's health, and it is easy to make people dehydrated and suffer from heatstroke, which is very dangerous for the weak or the elderly. Of course, young people can't stand it, so many outdoor jobs can't be hot, and the suspension of production will also affect the economy.
So what can we ordinary people do in the face of global warming?
Choose energy-saving air conditioner, the temperature should not be too warm or too cold. This not only consumes energy, but also makes people uncomfortable and weakens people's ability to automatically regulate their body temperature.
Use energy-saving light bulbs. 1 1W energy-saving lamps have the same lighting effect as 60W ordinary bulbs, saving 80% electricity per minute. If 120 billion energy-saving lamps are used nationwide, the electricity saved is equivalent to the annual power generation of the Three Gorges Hydropower Station.
If you go shopping by car, please make plans to buy as many as possible at one time. If it's not too far, run or walk to the gym instead of driving.
Drivers can also save energy: avoid cold car starting; Reduce idle time; Try to avoid sudden speed change; Choose the appropriate gear to avoid low-speed and high-speed driving; Use lubricating oil with the lowest viscosity; Change the oil regularly; Don't open the window when driving at high speed; The tire pressure should be appropriate.
Low carbon travel
Short-distance (within 5 kilometers) travel: the "135" travel mode can be implemented. That is, walk as far as possible within 1 km, ride a bike as far as possible within 3 km, and take public transportation as far as possible within 5 km. Through walking, cycling and public transportation, we can achieve near-zero carbon emission, exercise, low carbon and environmental protection.
Medium-distance (5 to 50 kilometers) travel: giving up gasoline cars and taking subways, buses or new energy vehicles can reduce carbon emissions by more than 95%.
Long-distance (more than 50 kilometers) travel: giving up gasoline cars or planes and taking intercity trains, light rails and trains can reduce carbon emissions by more than 90%.
In recent years, extreme weather has become more and more extreme, getting hotter every year. It seems that this year will always be the coolest year. It is indeed urgent to manage the environment. It is not just a slogan, everyone needs to participate.