Traditional Culture Encyclopedia - Weather forecast - The harm of global warming, how can we slow it down and why?
The harm of global warming, how can we slow it down and why?
1. Ecology
First of all, 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 northeast China for the summer every year. However, due to global warming, the temperature in Northeast China is rising and the summer is prolonged, so the time for this bird to leave Northeast China is correspondingly warmer, and the time for returning to Northeast China 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 droughts and floods.
2. Climate
Global warming has increased precipitation in Chinese mainland, especially in the middle and high latitudes, and reduced precipitation in some areas such as Africa. Frequency and intensity of extreme weather and climate events (El Nino, drought, flood, thunderstorm, hail, storm, high temperature weather and sandstorm, etc.). ) has increased in some areas.
3. Ocean
With the increase of global temperature, the amount of water vapor evaporated in the ocean has greatly increased, which has aggravated the warming phenomenon. The reduction of the total heat capacity of the ocean can restrain global warming. In addition, because the ocean releases excessive carbon dioxide into the atmosphere, the real culprit is the plankton community in the ocean.
4. Crops
The impact of global warming on crop growth has both advantages and disadvantages. First, global temperature changes directly affect the global water cycle, causing droughts or floods in some areas, resulting in reduced crop production. 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 with global warming will also promote the photosynthesis of crops, thus increasing the yield.
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