What is the cause of the drastic change in the earth s temperature?

The use of fossil fuels as industrial energy sources will emit a large amount of carbon dioxide, which will cause the "greenhouse effect" and cause global warming, threatening the living environment of human beings. But the complete abolition of fossil fuels is now an unrealistic option. Therefore, how to strike a reasonable balance between economic growth and environmental protection is the key to formulating a sustainable development strategy.

But this first requires a more accurate understanding of the magnitude of the greenhouse effect. In research over the past few decades, scientists have reached a consensus that global temperatures have risen in the last century, and that human activities, especially carbon dioxide from the burning of fossil fuels, are the main cause of global warming.

But what are scientists' estimates of the future prospects – what temperature will the Earth rise to? What is the serious threat of the greenhouse effect to mankind? — but there have always been disagreements.

If the traditional benchmark of doubling the amount of carbon dioxide in the atmosphere is used, some studies believe that global temperatures will rise or less, while others estimate that the increase will be as high or even more). These disagreements among scientists have considerable political consequences. One of the reasons for the Bush administration's refusal to sign the "Kyoto Agreement" and Russia's negative attitude toward this is that there is some "scientific evidence" that the so-called "greenhouse effect" is seriously exaggerated.

BERLIN, June 1 (Xinhua) -- The greenhouse effect has caused the earth's temperature to rise, but the role of water vapor in the rapid warming of the earth cannot be ignored. According to a recent report, water vapour is playing a far more serious role in warming the planet than one might think. According to Professor Dieter Clay, an atmospheric chemist at the Jülich Research Center in Germany, on the 1st, in the past 45 years, the concentration of gases has increased by 75 in the atmosphere at an altitude of 12 to 16 kilometers.

As the concentration of the gas increases dramatically, water vapor significantly exacerbates the warming of the planet. However, the reason for the increase in stratospheric gas concentrations is still unknown. Since 1980, water vapor has increased the Earth's temperature by 0 11 degrees Celsius.

During this same period, the main culprit of the greenhouse effect - carbon dioxide raised the temperature by 0 25 degrees Celsius. "We don't understand why water vapour increases," Professor Clay said.

The wide range of air circulation to date has ensured the balance of the upper atmosphere. Sixty-eight scientists from seven countries participated in research on water vapour further contributing to global warming, which is also part of the world's climate research programme. The research submitted by the experts will change the way people think about the atmosphere and reassess temperatures.

In the past, people only measured temperature based on carbon dioxide emissions, but now water vapor must also be taken into account. According to the study**, global temperatures could rise by 1 4 to 5 8 degrees Celsius over the next 100 years. Scientists have been trying to measure water vapor as accurately as possible since the mid-40s, but they have not been able to do so because the technology was not yet mature.

Since 1980, American scientists have been observing water vapor in the stratosphere through satellites.

The greenhouse effect, mainly greenhouse gases such as carbon dioxide, causes less of the amount of solar energy absorbed by the Earth to be reflected back into space, ultimately leading to an increase in temperatures.

It is the four seasons that cause a large change in temperature pull. But the overall change is affected by the Ice Age, we are now at the beginning of a new Ice Age, but it is normal for the temperature to gradually rise to a certain extent at the beginning stage, don't worry, as long as human beings do not exert too much influence, the earth will automatically adjust, and the Ice Age is an inevitable change of the Earth itself, don't worry too much about its arrival!

Burning large amounts of fossil fuels leads to excessive carbon dioxide emissions, the reduction of trees, and the inability to absorb carbon dioxide emissions, leading to global warming.

Because human activities produce a large amount of carbon dioxide, the light that the sun hits the earth cannot be reflected back into space and collects on the earth, causing the global temperature to rise.

The proportion of carbon dioxide causes large changes in the earth's temperature.

Categories: Education, Science, >> Science & Technology.

Analysis: 1. Natural causes: At present, the earth is in an interglacial period between two glacial periods, and the temperature has a rising trend, but the warming rate is slow.

2. Human causes: the increase in the proportion of carbon dioxide absorbs a large amount of infrared long-wave radiation released from the ground, causing the temperature to rise rapidly and producing the greenhouse effect. The reasons for the increase in carbon dioxide are:

1) Industry, transportation, and household stoves burn a large amount of coal, oil, natural gas and other fossil fuels, producing a large amount of carbon dioxide.

2) Indiscriminate deforestation, especially tropical forests, has been destroyed, so that the carbon dioxide absorbed and fixed by forests has been rapidly reduced.

Impacts: 1. Cause sea level rise and flooding of coastal lowlands.

2. It causes changes in precipitation and dry and wet conditions in various regions of the world, and then leads to changes in the economic structure of countries around the world. There may be some local benefits, but globally, the cost of restructuring the economy will be greater than the possible benefits.

Previously, carbon dioxide was thought to be the main substance that caused the temperature to rise sharply. However, scientists at the Center for Atmospheric Research in the United States have proven that some noble gases have a much greater impact on the climate than carbon dioxide. If these noble gases continue to increase in the atmosphere, they could quickly cause a sharp increase in temperature and lead to a worldwide catastrophe.

The balance between the radiant heat absorbed by the sun and the radiant heat emitted by the sun is extremely precise, but this balance is currently being disrupted. And the matter that upsets this equilibrium is roughly twofold.

The first is carbon dioxide from the burning of fuel coal and oil; The second category is those noble gases. Studies have shown that noble gases have three times the heat absorption capacity of carbon dioxide. It is precisely because these gases absorb a large amount of heat that the temperature of the atmosphere rises dramatically.

Scientists estimate that by 2030 AD, atmospheric temperatures could rise by an average of three to four degrees Celsius. At that time, there is a high risk that the glaciers at the poles of the earth will melt and cause a worldwide catastrophe.

Protecting the environment is everyone's responsibility.

The most direct cause of weather changes on Earth is the mixing of gases in the atmosphere, the movement and changes in humidity. The Earth's atmosphere can be divided into different levels, each with different temperatures and pressures. The heat of solar energy is absorbed and radiated on the earth's surface, resulting in atmospheric movement and changes in temperature.

At the same time, the temperature difference between the Earth's rotation and the equator and the polar regions will also affect the movement of the atmosphere and the drying up of the weather, such as the equatorial region, which receives more intense sunlight, resulting in higher temperatures and higher humidity there, thus forming weather characteristics such as tropical rainforests. In addition, the topography of the earth, the distribution of oceans and land, and human activities also have an impact on weather changes.

Summary. In the past 100 years, the temperature has gradually increased, and scientists** will get higher and higher.

In the past 100 years, the temperature has gradually increased, and scientists** will get higher and higher.

Melting glaciers are the best way to illustrate the problem. If the temperature remains constant, the area of the ice sheet will not decrease year by year. Although some scientists believe that the statistics are incomplete, because in the southern hemisphere, large areas of the ocean we cannot count.

There are scattered observational station data that suggest that temperatures are falling in the Southern Hemisphere. But none of these claims can explain that the reason for the decline in the Arctic and Antarctic ice sheets is not due to the warming of the global agitation source. So, the temperature is really rising.

As for the warm winter, ......That's. Global warming doesn't have to be a warm winter. Carbon dioxide is not the only greenhouse gas.

It's not that it only blocks the Earth's temperature radiation. Blocking radiation sometimes goes both ways.

In response to global climate change, countries adopted and signed the Paris Agreement. Its main goal is to control the rise in global average temperatures since the beginning of this century, in the 2 degrees Celsius range, which is in the range of previously industrialized degrees Celsius.

This new report was obtained through 6,000 scientific publications published in the wake of the 2015 Paris Agreement: given the current carbon emissions, the global temperature breaks the boundary, which it could reach at some point between 2030 and 2052, and is proceeding in the direction of a temperature of 3 or 4.

You may not be very clear about the increase in global temperatures. The following data can tell you about the increase in global temperatures.

The increase in temperature will lead to a 26-77 cm rise in sea levels, while millions of people living in coastal areas will be affected.

An increase in temperature will harm 13% of the world's land, increasing the risk to many insects, plants and animals.

Rising temperatures will cause the Arctic to experience one or two free summers every 10 years.

Rising temperatures will cause many reefs to drop by 70 to 90 percent.

It has to be said that this will be a problem for many of the Earth's ecosystems and for many people in the coming decades. The report, from the United Nations, shows that as global temperatures rise, extreme temperatures in some of the world's mid-latitudes will rise in the 21st century, with the Arctic rising. The ice is longer, and 70 to 80 of the existing reefs will disappear.

The average person may believe that the global temperature rises or increases by 2°C, and it does not have a large effect, but the impact on nature and humans is significant. Huang Lei, from China's National Climate Center, said that if the temperature rises in the future, then the global level will increase by meters to meters. Do not underestimate the height of this ascent, it is enough for many countries to suffer from drowning luck.

In addition, the increase in global temperature does not mean that the world is uniform, experts said, because the heat between the land and the sea is very different, so the land warms more than the ocean, and the land at high latitudes is warmer than at low latitudes. Land. Extreme temperature variations in the land far exceed global surface mean temperature variations, such as extreme low temperatures at high latitudes.

That's why countries are committed to controlling the world's temperatures, because every extra bit of warming has far-reaching global implications.

It should lead to the extinction of many plants, and it will also lead to a lot of reduction in the living area of the earth and an expansion of the ocean.

Glaciers melt due to warming temperatures, and sea water will flood cities, especially those near the sea, and soon the earth will be covered by the ocean, and people will also die because they lose their homes.

As the earth warms and glaciers melt, coastlines rise a bit and areas are submerged. Some animals and plants will die if they can't stand such changes.

Droughts and fires are also on the rise in some places. Rising temperatures also mean that the atmosphere is getting thinner, the ability to block ultraviolet rays is also decreasing, some organisms in the tropics will also face death, and human food rations will be strained.

It doesn't matter. The Earth's temperature doesn't rise all the time.

The earth's temperature has been up and down for billions of years, and some geological periods are ice ages, not to mention the polar regions, that is, temperate regions, and most of them are covered by ice and snow. Some geological periods were quite warm, with average temperatures 7 to 8 degrees warmer than now. It's not a big deal.

Although the reasons for the fluctuation of the Earth's temperature are not yet clear, the Earth has the ability to regulate surface temperature. If it's too high, go down, and if it's too low, go up. And what will be the impact of changes in the earth's temperature on human beings, the earth does not care at all, does not care.

We are now worried about the warming of the earth, the intensification of desertification, and in the final analysis, we are all worried about human beings themselves, and we are all thinking that if the earth's temperature becomes too high, it will be detrimental to the survival of human beings themselves. This is the selfishness of human beings.

But what do humans think, and does the earth care?

The temperature of the earth has been rising and rising, because of the destruction of human beings, industrial pollution, the destruction of vegetation, coupled with a series of factors such as El Niño, cosmic black holes, sunspots, etc., the consequences are the melting of icebergs, the rise of sea levels, and the inundation of islands.