What does it mean that the global temperature has been abnormally abnormal these days?

Since the end of autumn 2009, heavy snowfall, strong cooling, and cold waves have taken turns, causing the temperature in Beijing and even in North China to drop again and again, and the maximum temperature dropped to January 4, 2010, which is the lowest value of the highest temperature in early January since 1951. From January 2 to 3, 2010, the snowfall at the observatory in the southern suburbs of Beijing reached 10 mm, the largest daily snowfall for the same period since 1951. One can't help but ask, isn't it global warming?

Why is it still so cold this winter? Meteorological experts have given this answer: in the context of global warming, there are often more extreme weather, including high temperature heat waves with extremely high temperatures, as well as cold waves and blizzards with extremely low temperatures.

The general trend of climate change is that the world is warmer and warmer, but at a certain time, there will still be extremely cold weather in some regions. For example, at the end of December 2004 and the beginning of January 2005, as well as from mid-January to early February 2008, there was such a continuous severe cold, rain, snow and freezing weather in our country. This is mainly caused by internal and natural factors in the atmospheric circulation, but climate warming may also provide an important background condition.

By analyzing the recent temperature and precipitation data, it is found that since the late autumn of 2009, Northeast China and North China have been relatively cold, but the temperature in the south of the Yangtze River Basin, Northwest and Southwest China is generally high. The cooling of a certain region is not contradictory to global warming. The climate forcing of increased greenhouse gas concentrations is global, but other factors, such as natural factors, local feedbacks and regional changes in atmospheric and oceanic circulation, can enhance this effect in some regions and attenuate it in others.

For example, in some parts of the Arctic, Canada's western Arctic and Siberia have warmed significantly, and although the eastern Arctic has also warmed slightly over the past 50 years, some of them have seen a decrease in temperature. In addition to these regional variations, the average temperature in the Arctic has increased significantly. Similarly, some parts of East Antarctica have seen a drop in temperature over the past few decades, but the Antarctic Peninsula has seen significant warming.

Therefore, in the context of global warming, there will also be cold periods in local areas; And in the warm winter season, there will also be cold weather. I also found this, I hope it will help you.

It means that the destruction of nature by humans is too severe.

Nature's punishment of man.

Scientists believe that the past climate change may be related to the slow change of the Earth's orbit, which may be caused by the gravitational disturbance of other planets in the solar system, which changes the geographical and seasonal distribution of solar radiation energy, and the long-term change of solar insolation will affect the formation and melting of ice sheets, and then affect the ocean current cycle and atmospheric circulation. In addition, insolation affects the absorption and release of greenhouse gases such as carbon dioxide and methane by plants, rocks and soils, and the oceans, which in turn can lead to climate change.

However, global warming over the past 100 years or so has been largely linked to human activities, most notably due to the massive burning of coal, oil and gas, and deforestation, which add a large amount of carbon dioxide to the air every year. This gas is able to absorb thermal radiation, causing the "greenhouse effect", which causes the Earth to emit less heat into space than it absorbs from the Sun, resulting in hotter and hotter weather around the world.

According to a report published not so long ago by the World Meteorological Organization, the average temperature of the planet has risen about the same in the 20th century alone, mainly in the last 30 years. Since 1992, global temperatures have increased on average per year, with sea levels rising by about 1 2 mm. Sea level rise could reach 70 centimeters by 2100, a consequence of the melting of the Earth's ice sheets due to global warming.

It is gratifying to note that in recent years, this issue has attracted public attention around the world. At the 2007 International Conference on Global Climate Change in Bali, Indonesia, countries unanimously decided to take immediate steps to stop further warming.

Clause. 1. The continuous increase in global temperature has only been very obvious since the beginning of the Industrial Revolution. The main reason is the rapid development of the industrial revolution and the rapid progress of science and technology, which has led to a large increase in the use of chemical fuels, and some technological products such as automobiles and airplanes emit a large amount of carbon dioxide, methane, nitrous oxide and other heat-absorbing greenhouse gases into the atmosphere.

Clause. Second, the concentration of these greenhouse gases in the atmosphere is getting higher and higher, so that the atmosphere forms a layer of greenhouse gas film, thus forming the greenhouse effect, after the heat of the sun radiates to the ground, and then reflects to the high altitude, these heat can not be dissipated due to the greenhouse effect, making the temperature of the earth higher and higher, leading to global warming.

Clause. 3. According to statistics, 22 billion tons of carbon dioxide are emitted into the atmosphere from the fossil energy burned by human beings every year, causing the global greenhouse gas concentration to continue to rise. In Beijing, for example, carbon dioxide concentrations are increasing on average every year.

So is the greenhouse effect really to blame for rising moisture? Scientists don't think so, and the greenhouse effect is just one factor contributing to rising global temperatures, among others.

Clause. Fourth, another cause of the rising global temperature is urbanization, some scientists believe that among the factors that cause the rising temperature, urbanization is also an important factor, that is, the heat island effect. Its effects may be more concerning than the greenhouse effect.

In 1833, the British climatologist Lake Howard compared the temperature between the urban and suburban areas of London, and found that the temperature in the urban area was higher than that in the suburbs, and proposed the climate characteristics of the heat island effect for the first time.

Clause. 5. Cement, asphalt roads, concrete, etc., which are widely used in buildings and roads in the city, account for more than 70% of these materials in the construction of cities, and these materials are easier to absorb solar radiation and heat up quickly, for example, cement of the same quality heats up 1 degree Celsius, which is much less than the heat radiation required by the soil.

There are persistent hot weather events around the world, which is a wake-up call for the earth through heat warnings。"It's hot, it's hot, it's dry", words like "it's too hot, it's dry", it's almost tired of hearing these days, but it's true. The scorching heat makes us feel unusually irritable, especially when the sun comes out and we are covered in sweat, and we will say when such ghost weather will pass.

Especially for outdoor workers, working in such hot weather is simply deadly.

There are varying degrees of high temperatures around the world

As far as China is concerned, most areas across the country have entered a state of high temperature weather, especially since July, the continuous high temperature weather has only been cracked for a period of time, and a red warning has been issued. At present, the hot weather is moving south, and many areas have reached more than 40. And many countries around the world are in a similar situation, and they have also said that the weather is getting hotter.

This is a "warning" from the Earth

Experts and data show that the causes of frequent heat wave events are directly related to global warming, and are also the root causes. With the development of time, the speed of global warming is getting faster and faster, so extreme weather is also frequent, but this is inseparable from human activities, so this is the earth through abnormal weather to warn us, "earth" wants us to pay more attention to this thing, if the event of global warming is not improved, then more extreme weather, natural disasters and so on. <>

We need to do a good job of prevention

In this hot weather, there are many migrant workers who have to go out to work even under the scorching sun in order to survive. In this case, Lushan is prone to heat stroke, so in order to prevent this kind of thing from happening, it is necessary to do a good job of prevention, such as drinking more water, and then try to work in a cool place to avoid going out at noon. <>

Yes, this is a warning from the Earth. Now people are more and more seriously damaged to the environment, and the ecosystem is being destroyed.

It is not the earth's retaliation, but the change of the earth's environment caused by human activities. It can be understood as revenge, but I think it is more like a steady-state adjustment mechanism that is not registered. The problem of global climate change will gradually become more serious in the 21st century.

If humanity does not change its energy structure, global warming will become out of control in the next 30 years.

I think this situation will continue for a long time, because hot weather is very common, and hot weather will cause drought in the fields and aggravate the food crisis, so it will have a certain impact on life.

This is mainly related to carbon emissions, which are now very serious, and extreme weather will occur.

It is mainly related to the weather, and there is also the fact that the world is warming, and this situation is likely to continue to occur in the future.

The south of our country has suffered from severe heatwavesThis summer is the longest and warmest summer in China in recent decades, because this year's subtropical high is too extreme, which has been continued in southern China, and the Siberian cold current and various typhoons are relatively small, so it has led to a serious heat wave climate in southern China; Most areas in southern China have broken through the high temperature of 40, and such as Chongqing and Hunan and other regions have even reached the extreme high temperature of 45, such a temperature situation, has caused a serious impact on the normal life of residents, although the relevant departments have made an emergency plan, but the hot weather will continue. <>

In hot climates, residents should pay attention to summer workBecause the high temperature this summer is too extreme, it has affected the normal life of more than 900 million residents, so in the face of extreme heat weather, residents should do a good job of summer work; For example, try to avoid exposure to the sun, at the same time consume enough water every day, and try to carry sun umbrellas or Huoxiang Zhengqi liquid and other heatstroke medicines when traveling to avoid heat stroke outside; At the same time, not only the severe high temperature weather suffered by our country, but also Spain and other Western countries have suffered from serious high temperatures, and more than 3,000 people have died due to high temperature in Spain alone, which also needs the attention of our residents. <>

Humans should pay attention to hot weatherToday's high temperature weather is actually related to the over-exploitation of natural resources by human beings, which has led to the gradual deterioration of the earth's environment; And what are the serious consequences of extreme heat weather, such as the melting of a large number of glaciers around the world, and the melting of icebergs will cause sea levels to rise, and skills will inundate most of the world's coastal areas and cities, and will displace billions of people, and the consequences will be very serious; Therefore, human beings should reduce greenhouse gas emissions, and at the same time reduce the over-exploitation of natural resources, so as to stabilize the earth's environment and carry out sustainable development. <>

It may be related to the cause of global warming. This is not only the case in my country, but also in many countries.

This global problem, this heat is also very high, so, at such a time, it is very hot, and there will be all kinds of problems.

This year's weather is particularly abnormal, in fact, the main reason is that there is a problem with the entire atmosphere, and there are many driving measurements on some roads, which will also cause the weather to be hot.

The issue of global warming.

1. Rising temperature: The average temperature of the earth's surface is increasing year by year, leading to climate warming. According to scientific research, most of the temperature rise over the past century is due to human emissions of greenhouse gases.

2. Extreme weather events: Global climate change has increased the frequency and intensity of extreme weather events, such as heat waves, droughts, heavy rains, hurricanes, etc. These extreme weather events have had a severe impact on people and ecosystems.

3. Sea level rise: Global climate change has led to melting glaciers and ocean expansion, which in turn has caused sea level rise. This can lead to the inundation of coastal areas and the destruction of coastal ecosystems.

4. Biodiversity loss: Climate change has a negative impact on biodiversity. Environmental changes caused by climate change can lead to species extinction, habitat loss, and ecosystem collapse.

The issue of global climate change has aroused extensive concern and discussion in the international community. Through international frameworks and agreements, such as the United Nations Framework Convention on Climate Change and the Paris Agreement, the international community is committed to reducing greenhouse gas emissions, adapting to climate change, and improving global disaster risk reduction capacity.

Causes of global climate change.

1. Natural factors.

1. Solar activity: Changes in solar activity will have an impact on the Earth's climate. The irregularity of the sunspot activity cycle can lead to changes in the amount of solar radiation received by the Earth.

2. Volcanic eruptions: Volcanic eruptions release large amounts of gases, dust, and particulate matter, which can block solar radiation and cause the earth's surface temperature to drop.

3. Changes in natural systems: Changes in natural systems themselves, such as ocean circulation, monsoons, glaciers and forests, will have an impact on the full-volt-bulbic climate.

Second, the human factor.

1. Greenhouse gas emissions: Human activities are mainly in industry, transportation, energy production and agriculture, which emit a large amount of greenhouse gases, especially carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O). These gases accumulate in the atmosphere, creating a greenhouse effect that causes the Earth's temperature to rise.

2. Destruction of forests and ecosystems: Large-scale deforestation, land reclamation, and ecosystem destruction have led to the release of large amounts of carbon dioxide. Forests are important factors in absorbing carbon dioxide and releasing oxygen; When forests are destroyed, the ability to absorb carbon dioxide decreases, further contributing to global climate change.

3. Efficient flow of fossil fuels: Fossil fuels (such as coal, oil, and natural gas) are used in large quantities to meet energy demand, releasing large amounts of greenhouse gases.

Greenhouse gases emitted by human activities are the main cause of the increase in global climate change. Reducing greenhouse gas emissions and adapting measures are key to tackling global climate change. This will require global cooperation and effective measures to reduce emissions, including the promotion of renewable energy, energy efficiency, ecosystem protection and sustainable agriculture.