Why is this winter so unusual

Caused by global warming, not only in the Northeast, but also in some places there is a warm winter, and in some places it is a cold winter, and the global environment is changing, all caused by people!

Causes of global warming! Because of man-made environmental pollution, carbon dioxide increases, so that sunlight hits the earth and cannot be reflected back! Increases the temperature of the earth.

Historically, the earth has been in a period of warming, and it has been caused by factors such as the burning of fossil fuels and the increase in greenhouse gases.

Yes, it's man-made.

If we want to remedy something, please try to use the air conditioner and refrigerator as little as possible.

Use more eco-friendly facilities.

In a very old-fashioned saying, the earth is my home, and it depends on everyone to protect it! ~

El Niño currents, the burning of fossil fuels, and the increase in greenhouse gases are causing global warming.

This year's cold came late, and the temperature may drop in February, and the rate of global warming should not be so fast, estimated to be 10 years from now.

It is a warm winter due to the El Niño phenomenon.

Environmental pollution. Global warming.

Even Russian polar bears don't hibernate ......

So we want to protect the environment!

The greenhouse effect of global warming.

The temperature is abnormal, there has not been heavy snow, it is dangerous, if this continues, the human race will perish?

Let's hope scientists give us an answer.

It's caused by global warming.

It's hot in China this year, but it's cold in the U.S. and Canada.

As a result of the greenhouse effect, the global climate has warmed, and the winter will naturally be cold.

The greenhouse effect refers to the warming and warming effect of light-transmitting mulch on the protection of microclimate. The principle of its warming is as follows:

1.The revenue from solar radiation is reduced slightly, but the expenditure of long-wave radiated energy emitted upwards by the ground is largely blocked, so that the radiation budget of protected areas is more inclined to have more income than expenditure.

2.The mulch blocks the turbulent heat input from the ground upwards (during the day) and warms the reserve.

The atmospheric greenhouse effect refers to the warming effect of atmospheric substances on the near-Earth atmosphere, and its warming principle is similar to the above principle 4, that is, with the increase of warming substances such as CO2 in the atmosphere, it can block more long-wave radiation energy expenditure from the ground and near-Earth atmosphere to the universe, thereby warming the Earth's climate. The possible positive effects are increased rainfall in some arid areas and a worse thermal situation in high-latitude agricultural areas, but the main negative effects are the frequent occurrence of drought and waterlogging in tropical and temperate zones, as well as melting icebergs, rising sea levels, and inundation of coastal deltas. Therefore, it is an urgent obligation of mankind to reduce the emission of harmful substances in the atmosphere.

This year's winter is not a warm winter and can not reach the level of cold and winter, it is a normal winter, and extreme weather will not appear, compared with before, it should be a relatively warm winter now.

This winter is a cold winter. Extreme and unusual weather is likely to occur, with some extreme weather conditions occurring as global warming intensifies.

In the cold winter, the temperature this year has dropped very quickly, and it should be relatively cold, and extreme abnormal weather is likely to occur.

This year's winter will see a cold winter. Extreme weather may occur, but it depends on the specific weather conditions.

Either warm winter or freezing This winter, if the temperature does not exceed minus 40 degrees, it is not called extreme.

This year, due to the influence of the strong cold air of the Prudent Transport Bureau, China has experienced the coldest winter in nearly 30 years.

This winter is ahead of schedule, with atmospheric circulation adjustments and El Niño events being the main causes.

The adjustment of atmospheric circulation in mid-October and the strengthening of cold air activity are the direct causes of cold waves and snowstorms in the middle and high latitudes of the Northern Hemisphere. Since late October, the atmospheric circulation has adjusted again, resulting in the strengthening of cold air activity again, which has also triggered strong cooling and abnormal rain and snow weather in China.

In addition, the El Niño event also played a role in fueling the flames. Studies have shown that the occurrence of El Niño events often has a significant impact on the climate from late autumn to winter in the middle and high latitudes of the Northern Hemisphere. The monitoring results show that the El Niño event in the equatorial eastern Pacific Ocean that began in June this year is still in a stable development stage.

In the context of such a climate, when there is strong cold air in the north and invades the south, it is easy to form low-temperature rain, snow and freezing weather.

So this winter is particularly cold.

Normally cold. Generally still within the normal range.

The first reason is that we are in a La Niña state this year, that is, the sea surface temperature in the eastern equatorial Pacific is lower than normal and below the negative degree, and the impact of this phenomenon on China's climate is very obvious. It's going to have a cold winter, so we can see that this cold winter is coming this year.

The second reason is that the two conditions that must be met for snow or rain are 1Warm and humid air currents from the tropics. 2.

There is cold air from the alpine regions. Areas of winter snowfall (the same is true for areas of summer rainfall) are located near fronts, i.e. at the junction of warm and cold air masses. This position is not fixed, it is determined by the strength of the forces of the two natures.

The cold air mass is weak, and the front and precipitation area are higher latitudes, and the cold air mass is stronger, and the front and precipitation areas are lower latitudes. The land cold high that affects China in winter is the Asian high (also known as the Mongolian and Siberian high pressure) centered in Mongolia and Siberia, and its sphere of influence is very large, which has a great impact on the weather in China, especially in the northern region. The cold air that affected our country in the early part of midwinter this year is relatively weak, and the number of times is not much, even with the cooperation of warm and humid airflow, it is not easy to snow without cold air.

However, since 2008, the Asian high pressure is very active, and the cold air mass continues to form southward to affect our country, resulting in a wide range of windy cooling weather, but because the warm air mass in the south this year is also very active, a large number of warm and humid air currents from the Pacific Ocean and the Indian Ocean frequently visit the southern region, when the strong cold air mass from Siberia, Mongolia quickly moves south to the southern region, and meets with the warm and humid air mass, the cold, warm two just combined. Affected by the combination of these two airflows, there has been a lot of rain and snow in recent times, especially in the Yangtze River basin, and the weather has been maintained at low temperatures for a long time. If there is only a strong cold air mass, and there is no large amount of water vapor provided by the warm and humid air mass, there will only be strong winds and cooling weather in the south; If there is only a large amount of water vapor provided by the warm and humid air mass, and no cold air mass is present, there is no catastrophic weather at all.

And when both are in place, disaster strikes.

As the climate warms, evaporation intensifies.

It is said that the ...... is caused by the rising temperature

While our earth is constantly revolving around the sun, it is also rotating around its own axis, but the earth's axis is not perpendicular to the orbital plane, but has an inclination of 23 degrees and 27 minutes. It is precisely because of the existence of this inclination angle that the direct point of the sun on the earth's surface moves between the Tropic of Cancer and the Tropic of Capricorn, thus forming the four seasons of spring, summer, autumn and winter.

When the sun shines directly on the Tropic of Capricorn, the northern hemisphere has more solar heat and the days are longer than the nights, so the temperature in the northern hemisphere is at the highest time of the year, which is summer; At this time, the sun is obliquely shining in the Southern Hemisphere, which receives less solar heat and has longer nights than days, so the Southern Hemisphere is in the coldest season of the year - winter. When the earth revolves half a circle around the sun, the direct point of the sun moves from the Tropic of Cancer to the Tropic of Capricorn, and the solar heat obtained by the northern hemisphere gradually decreases, from summer to autumn, and then to winter combustion season. In the Southern Hemisphere, on the other hand, the opposite is true, moving from winter to spring and then to summer. However, the Earth's orbit around the Sun is not a standard circle, so summers in the Southern Hemisphere are slightly hotter than summers in the Northern Hemisphere, and winters are colder than those in the Northern Hemisphere.

So there will be winter coming.

There is a difference in the number of days between the lunar calendar and the solar calendar.

Zhao Zhiheng, an astronomical education expert and director of the Tianjin Astronomical Society, explained that China currently uses both the internationally accepted Gregorian calendar (solar calendar) and the traditional lunar calendar of the Chinese nation. Among them, the Spring Festival is fixed on the first day of the first month of the lunar calendar every year, but its date in the solar calendar is not fixed.

In the Gregorian calendar, the Earth revolves around the Sun for a return year, with 365 days in a common year and 366 days in a leap year. The traditional lunar calendar in China is based on the cycle of the moon waxing and waning, a month is about a day, and 12 months is 353 days to 355 days, which is about 11 days less than the solar year.

China adopts the "19 years and 7 leaps" method to make the Spring Festival relatively stable in the solar calendar, if the number of days between the lunar calendar and the solar calendar is allowed to be so different, then there will inevitably be a phenomenon that the Spring Festival is spent in summer. Therefore, in order to keep the time of the Spring Festival relatively stable in the solar calendar, China has adopted the "19 years and 7 leaps" method, that is, 7 leap years are added to the 19 lunar years.

Yes, because there is an extra leap June in the lunar calendar this year, the Spring Festival will be later next year. I remember that in the 2014 lunar calendar, there was an extra leap September, so the 2015 Spring Festival was on February 19.

It's already cold, and winter has arrived.

It's snowing heavily in Hangzhou, I don't think it's late, it's so cold!

It's clearly a bacterial infection. It is commonly known as stinky feet, Hong Kong feet. Use Parissone, once a day, once a week, basically completely disappear, a month**.