Is the global climate warming or cooling, and what is the difference between global warming and clim

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? Meteorologists gave 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.

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In fact, the scientific community now has different views. The more mainstream view is that global warming, such as the increase in carbon dioxide and so on; On the other hand, the results of various studies show that the world is also on a global cooling trend.

To be honest, as ordinary residents, it is never possible to understand those things in the scientific community, and this seemingly contradictory topic of getting hot and cold really has nothing to do with our daily life, whether it becomes cold or hot, we still need to live or live, or we need to be busy in life, so let's do whatever it takes, let him get hot and cold.

Since the Ice Age, the temperature of the earth has been rising until it dies, and the theory of the greenhouse effect is not necessarily correct, and the air deterioration is certain

There is a theory that the greenhouse effect is the main cause of global warming. This is what scientists have examined near, of course, according to modern environmental science research, on the degree of correlation between the greenhouse effect and global warming, and is still further.

1. Global climate change refers to the changes in the Earth's climate since 1900. The changes that we have seen recently, and which we expect to take place over the next 80 years, are largely due to human behaviour rather than natural changes.

2. Global climate change mainly refers to climate warming, the depletion of the ozone layer in the atmosphere, and the weakening of the role of oxide fiber in the atmosphere. As the global climate changes, other systems of the natural environment have also undergone some changes, but climate change remains at the heart of global change.

3. Global climate change mainly refers to the change of atmospheric temperature and precipitation under the condition of increasing the volume percentage concentration of CO2.

4. Global climate change refers to the increase of CO2, CH4, N2O, CFCS, O3 and other gases in the atmospheric composition and the possible global atmospheric warming and other possible changes.

The difference is that climate change is only matched by the increase in temperature, and the climate becomes warmer and more peaceful, while global warming refers to the increase in global temperatures, and such temperature increases will bring the harm of melting icebergs and rising water levels.

Scientists use the term "global warming" to denote a long-term increase in the Earth's average temperature. It can specifically refer to such warming thought to be due to the rising concentration of greenhouse gases in the atmosphere. Most of the heat on the Earth's surface comes from the energy associated with the sun's rays, which hit the Earth's surface during the day.

At night, most of the energy is radiated back into space. Greenhouse gases, such as carbon dioxide, methane, nitrous oxide, and chlorofluorocarbons (CFCs), absorb infrared radiation (net heat energy) emitted from the Earth's surface and radiate it back to the surface, causing the greenhouse effect. While the recent increase in greenhouse gases in the atmosphere can be said to be the main factor influencing global warming, other factors are also involved (such as changes in the Earth's orbit, the angle of the planetary axis, and changes in the output of the sun's energy).

The two are due to the collapse of the relationship. Global warming can lead to climate change, and the problem of global warming is very serious, which can lead to abnormal climate and extreme weather.

Global warming will cause the climate to become extremely extreme, and it will also lead to many extreme weather events, which will bring danger to human beings. Therefore, we must protect the environment, we must take care of the environment, do not litter, do not use disposable dishes and chopsticks, and the garbage grinding state must be classified and lacking in sensitivity.