What are the main factors that affect the climate change in the past Millennium?

What are the main factors that affect climate change in the past Millennium?

Solar activity and volcanic activity are the main external forcing factors that affect climate change in China in the past Millennium. What are the main factors that affect climate change in northern Nepal?

Northern Nepal is the Himalayas, and the hydrothermal conditions (climate) change with the change of mountain altitude. What are the main factors that affect the price change of Hangzhou-Jiaotong asphalt invested by Yudao?

Asphalt is actually the same as the trend of crude oil. Looking at the information of crude oil, the change of OK tax burden is mainly affected by those factors

Sales price and product cost. To put it bluntly, it is the value-added amount. The higher the value-added ratio, the higher the tax burden, the smaller the value-added amount and the lower the tax burden.

After understanding the calculation method of tax burden, it is not difficult to understand that its changes are influenced by cost and income, such as rising cost and falling price. If the value-added space is small, the tax burden will become lower. The greater the value added, the higher the tax burden. What are the main factors that affect the gas transmission coefficient

The main reasons that affect the gas transmission coefficient of the compressor are:

1. The influence of clearance volume;

second, the influence of suction and discharge resistance;

third, the influence of inhaling superheated steam;

fourth, the influence of leakage. How big is the climate change between 1 years?

The average temperature of the earth fluctuated up and down for a long time, with glacial and interglacial periods appearing alternately. However, in the past 2 years, due to human activities, the temperature has accelerated, but it is not the highest temperature on the earth. The current temperature is much cooler than that in the Tang and Song Dynasties about 1 years ago. Now the earth is in the interglacial period, and the climate is warmer. If we follow the rules. The earth should slowly enter a Little Ice Age. At that time, the climate will be very cold, and it will snow in many places where it doesn't snow, and a large area of snow will freeze. What are the impacts and harms of climate change < P > can be interpreted from six angles: < P > Ecology < P > First, global warming leads to sea level rise and precipitation redistribution, which changes the current world climate pattern; Secondly, global warming affects and destroys the biological chain and food chain, bringing more serious natural consequences. For example, there is a migratory bird that flies from Australia to the northeast of China for the summer every year. However, due to global warming, the temperature in the northeast of China rises and the summer is prolonged, so the time for this bird to leave the northeast is correspondingly warmer, and the time for returning to the northeast is correspondingly delayed. As a result, a pest eaten by this migratory bird flooded and destroyed a large area of forest. In addition, extreme events related to the environment have increased, such as drought and flood.

2. Politics

Limiting the emission of carbon dioxide is equivalent to limiting the consumption of energy, which will definitely have a restrictive impact on all countries in the world. Whether to reduce emissions in developing countries or in developed countries has become the focus of discussion. The greenhouse gas emissions of developing countries are increasing, and the problem of "emission reduction" after 213 will inevitably focus on developing countries. The scientific problem of preventing global warming will inevitably lead to the problem of "North-South relations", thus making the climate issue an international political issue.

3. Climate

Global warming has increased precipitation in mainland China, especially in middle and high latitudes, and decreased precipitation in some areas such as Africa. The frequency and intensity of extreme weather and climate events (El Nino, drought, floods, thunderstorms, hail, storms, high temperature weather and sandstorms, etc.) have increased in some areas.

4. Ocean

With the global temperature rising, the amount of water vapor evaporated in the ocean has greatly increased, which has aggravated the warming phenomenon. The reduction of the overall thermal capacity of the ocean can inhibit global warming. In addition, because the ocean releases excessive carbon dioxide into the atmosphere, the real culprit is the plankton community in the ocean.

5. Crops

Global warming has both advantages and disadvantages on crop growth. First, global temperature changes directly affect the global water cycle, causing droughts or floods in some areas, resulting in reduced crop production, and excessive temperature is not conducive to seed growth. Second, the increase of precipitation will actively promote crop growth, especially in arid areas. The increase of carbon dioxide content accompanied by global warming will also promote the photosynthesis of crops, thus increasing the yield.

6. Human health

(1) Global warming directly leads to extreme high temperature, heart disease and various respiratory diseases in some areas in summer, which kill many people every year, among which newborns and the elderly are the most dangerous. (2) Global warming leads to an increase in ozone concentration. Ozone in the low air is a very dangerous pollutant, which can destroy human lung tissue and cause asthma or other lung diseases. (3) Global warming will also cause the spread of some infectious diseases.

I hope to be adopted. What are the main factors that affect the climate?

1. Latitude is the basic factor that affects the climate. Because the earth is a big sphere, the sun shines at different angles in different latitudes. Some places are direct, some places are oblique, and some places are not exposed to the sun all day or for several months. Therefore, the altitude angle of the sun is different in different places, and the amount of solar heat and light is different, and the temperature is also very different. Generally, the lower the latitude, the higher the temperature; The higher the latitude, the lower the temperature. Different latitudes in different regions are the main reasons for different temperatures around the world.

2. Atmospheric circulation is the main factor that forms various climatic types and weather changes. The air in the atmospheric circle is executed on different scales, which is collectively called atmospheric circulation. It is an important way to transport and exchange heat and water vapor in the atmosphere. The manifestations of atmospheric circulation are planetary wind system, monsoon circulation, land-sea wind, valley wind, etc. The atmospheric circulation that people usually talk about mainly refers to planetary wind system. The influence of atmospheric circulation on climate is very significant, with strong updraft, easy condensation of water vapor and abundant precipitation in the equatorial low pressure zone. Submerged vapor prevails in the subtropical high pressure zone, which is not easy to condense and the rain is scarce; In the trade wind zone, the air flows from the higher latitudes to the lower latitudes, so the water vapor is not easy to condense, and it usually rains less. However, on the east coast of the mainland, the trade winds blow from the sea, and there are more opportunities for precipitation; On the west coast of the mainland, the trade winds blow from the inland, so there is less precipitation. In the area controlled by the westerly belt, the wind from the west coast of the mainland blows from the sea, with abundant water vapor and abundant precipitation. The farther inland, the less water vapor and the less precipitation. On the east coast of the mainland, the west wind blows from the inland, with less precipitation. Generally speaking, the temperature of updraft and airflow from low latitude to high latitude changes from high to low, water vapor is easy to condense, and there are more opportunities for precipitation; In downward flow and the air flow from high latitude to low latitude, the temperature changes from low to high, and the water vapor is not easy to condense, so there are fewer opportunities for precipitation. Therefore, under the control of different pressure zones and wind zones, the climate characteristics, especially the changes of precipitation, are significantly different. In addition, the wind zone and pressure zone move with the seasons, thus forming various climatic types.

3. The distribution of land and sea changed the zonal distribution of temperature and precipitation. Due to the different physical properties of the ocean and the land, under the strong sunlight, the ocean warms up slowly and the land warms up quickly; After the sun weakened, the ocean cooled slowly and the land cooled quickly. The amount of water vapor contained in the air on the surface of the ocean and land is also different. Generally speaking, in the ocean or offshore areas, the daily and annual changes of temperature are small, precipitation is abundant, and the seasonal distribution of precipitation is relatively uniform, which forms a maritime climate. Therefore, in the same latitude, under the control of the same pressure belt or wind belt, the climate characteristics are different because of the different land and sea positions.

4. Terrain fluctuation can destroy the zonality of climate distribution. Terrain is a non-zonal factor, and different terrains have different effects on climate. In the same latitude zone, the higher the terrain, the lower the temperature, and the precipitation is within a certain height range, which increases with the height. Therefore, in the tropical mountains, from the foot of the mountain to the top of the mountain, there have been climate changes from the equator to the polar regions. In addition, tall mountains can block the execution of airflow, and the temperature and precipitation on windward and leeward slopes of mountains are obviously different.

5. Ocean currents also have a certain influence on the climate along the coast of the continent where they flow. The ocean current flowing from low latitude to high latitude, because it contains a lot of heat energy, plays a role in warming and humidifying the coastal areas it flows through; The ocean current flowing from high latitude to low latitude has a lower water temperature than the surrounding sea surface, which has a cooling and dehumidifying effect on the coastal areas it flows through. Therefore, in terms of temperature, ocean currents can adjust the temperature difference between high and low latitudes, and under the action of prevailing airflow, the temperature on the east and west coasts of the same latitude continent is significantly different, which destroys the zonal distribution of temperature latitude.