Global temperature specific data 30, how many degrees the global temperature rises each year

Since the 19th century, the global average temperature has increased by about annually.

The latest report from the World Meteorological Organization (WMO) says there is a 66 chance that at least one of the next five years will temporarily reach a degree Celsius increase, up from 48 last year and 10 a decade ago. At the same time, the report says there is a 90 chance that at least one of the next five years will be the hottest on record.

Previously, the global average surface temperature had never exceeded the threshold of socks. In 2021, the United Nations released a report that the long-term average global temperature was already above pre-industrial levels.

The reason for the sharp increase in warming is that scientists expect El Niño to return in the second half of this year, while the amount of hidden greenhouse gases in the atmosphere is still steadily rising, which is likely to cause temperatures to accelerate to new highs.

The iceberg melts

Scientists have found that if global temperatures continue to rise, melting Arctic icebergs will release large amounts of toxic chemicals that are trapped in ice and cold water. Researchers warn that the large quantities of these poisons that accumulate in the polar regions are unknown, and their release will seriously endanger marine life and human habitat. These chemicals that will leach include the pesticides DDT, chlordane, etc.

Another study on global warming is even more startling, as a result of melting Arctic ice sheets, increased rainfall, and changing wind patterns, large amounts of fresh water are flowing into the North Atlantic, damaging the Gulf Stream and cutting off the North Atlantic Current.

It is these warm currents that carry warm surface water from the Caribbean Sea to northwestern Europe and create a warm climate in Europe. Once the North Atlantic Current is cut off due to global warming, the temperature in northwestern Europe may drop by as much as 5 8, and Europe may face a new ice age!

The above content reference: Encyclopedia - Global Warming.

Climate change is a major issue facing the sustainable development of all countries in the 21st century.

In 1988, the World Meteorological Organization (WMO) and the United Nations Environment Programme (UNEP) jointly established the Intergovernmental Climate Change Committee (IPCC), whose mission is to organize hundreds of scientists from around the world to evaluate the science, impact and countermeasures of global climate change every five years, and to provide advice to the Conference of the Parties to the United Nations Framework Convention on Climate Change as requested.

Since 1990, the IPCC has conducted four evaluations, and in April 2007 in Brussels, the Fourth Assessment Report of IPCC Working Group II pointed out that the main impacts of future climate change in all economic spheres of human society will be negative.

A series of reports from the Intergovernmental Panel on Climate Change (IPCC) shows that global surface air temperature has risen on average in the 100 years of the 20th century, and that it is estimated that the global average temperature will rise in the next 100 years based on different climate scenario simulations.

While there are inevitable uncertainties in the recognition that global sea levels have risen by an average of 1 2 millimetres per year over the past 100 years as a result of thermal expansion of the oceans and melting of glaciers due to rising temperatures, and that global sea levels are expected to rise by 9 88 centimetres by 2100, there is a general consensus among the international community on the reality of climate change and its future trends.

The Framework Convention on Climate Change, signed in 1992, has been ratified by 188 countries to date.

Parties agreed to take action to protect the global climate.

IPCC) is the world's most authoritative meteorological monitoring agency, and the global temperature only fluctuates, not a net value.

This is the chart, I hope you can be satisfied.

The difference between global average temperature and global average temperature is the difference between the words air temperature and temperature, the difference between air temperature and temperature:

1. The definitions are different.

Air temperature: In meteorology, the physical quantity that indicates the degree of cold and hot air is called air temperature, referred to as air temperature.

Temperature: Temperature is a physical quantity that indicates the degree of heat and cold of an object, and microscopically it is the intensity of the thermal movement of the molecules of the object.

2. The scope of use is different.

Air temperature is used in the meteorological field. For example, the maximum temperature is around 2 o'clock in the afternoon, and the lowest temperature is around sunrise.

Temperature is used in physics. For example, temperature is a sign of the average kinetic energy of the molecular motion of an object, and temperature is the collective manifestation of the thermal motion of the molecule, which is statistically significant.

3. The units are different.

The unit of air temperature is Celsius, the symbol.

Temperature can only be measured indirectly by certain characteristics of an object as a function of temperature, and the scale used to measure the temperature value of an object is called a temperature scale.

4. The meaning is different.

The difference in temperature is one of the main factors that cause the difference between the natural landscape and our living environment, and it is very closely related to our lives.

From the point of view of molecular motion theory, temperature is a sign of the average kinetic energy of the molecular motion of an object. Temperature is the collective manifestation of the thermal motion of a large number of molecules and is statistically significant.

Since the end of the 20th century and the beginning of the year, the average surface temperature of the Earth has increased by about ( degrees Celsius). Over the past 40 years, temperatures have risen by about (Celsius). Over the past 400-600 years, global warming in the 20th century was more than at any time in history, 10/7 of the years in the 20th century occurred in the 90s of the 20th century, since one of the strongest afternoons 1998 was the hottest year since reliable temperature measurements began.

In addition, changes in the natural environment support the fact that the planet is warming; The mountain giaciers are also fading; Over the past four decades, Arctic ice thickness has increased by about 40 global sea levels, about three times faster than in the last 100 years compared to the previous 3,000 years.

According to instrumental records, global land and ocean temperatures rose by degrees Celsius relative to the period between 1860 and 1900. Since 1979, land temperatures have risen twice as fast as ocean temperatures (land temperatures have risen in degrees Celsius, while ocean temperatures have risen in degrees Celsius). According to satellite temperature soundings, the temperature of the troposphere rises to degrees Celsius every decade.

In the first two thousand years before 1850, although there were medieval warm periods and Xiaoice periods, the public believed that global temperatures were relatively stable.

According to a study by NASA's Goddard Institute for Space Studies, 2005 was the warmest year since the 1800s, when measuring instruments were widely used, a few percent Celsius above the 1998 record. The World Meteorological Organization (WMO) and the UK Climate Research Unit (UKCLI) have similar estimates, and 2005 was once expected to be the second warmest year after 1998.

After 2000, high temperature records were often broken everywhere. For example, on August 11, 2003, the Swiss town of Grono recorded a degree of Celsius, breaking a 139-year record.

In the same year, on August 10, the temperature in London, England, reached Celsius, breaking the record set in 1990. During the same period, the lowest temperature in the south of Paris was measured at night at Celsius, breaking the record since 1873. On the night of August 7, Germany also broke the record for the highest temperature in a century.

In the summer of 2003, Taipei, Shanghai, Hangzhou, Wuhan and Fuzhou all broke local high temperature records, while China's Zhejiang province broke high temperature records even faster, with 40 of the 67 weather stations breaking new records. In July 2004, Guangzhou's unusually high temperature broke a record for 53 years. In July 2005, 200 cities in the U.S. recorded historic high temperatures.

On August 16, 2006, the highest temperature in Chongqing reached 43 degrees. On July 8, 2006, the temperature in Yilan, Taiwan, reached high degrees, breaking the record set in 1997. 11 November 2006 was the hottest day in Hong Kong in November, with high-temperature highs, higher than the average maximum temperature from 1961 to 1990.

The first is a large-scale warming. The research data show that the annual average temperature in China has increased, which is slightly higher than the average global warming in the same period, and the warming in the past 50 years is particularly obvious. From the perspective of geographical distribution, the climate warming in Northwest, North China and Northeast China is obvious, and the winter warming is the most obvious in China.

From 1986 to 2005, there were 20 consecutive national warm winters in China. Second, regional precipitation changes fluctuate greatly. Third, in the past 50 years, the frequency and intensity of major extreme weather and climate events in China have changed significantly.

The drought in North China and Northeast China is becoming more severe, and the floods in the middle and lower reaches of the Yangtze River and Southeast China are aggravating. Fourth, in the past 50 years, the average annual rate of sea level rise in China's coastal areas has been millimeters, slightly higher than the global average. Fifth, China's mountain glaciers are retreating rapidly and have an accelerating trend.

The results of Chinese scientists show that the trend of climate warming in China will be further intensified in the future. Compared with 2000, the average annual temperature in China will increase in 2020 and in 2050. It is particularly worth noting that although China's historical greenhouse gas emissions are very low, and per capita emissions have been lower than the world average, from 1994 to 2004, the average growth rate of China's total greenhouse gas emissions was about 4%, and the total greenhouse gas emissions now rank second in the world, which is inevitably subject to attention and pressure from developed countries.

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