CHANGING PLANET

 

CHANGING PLANET

 

If we talking about changing planet, there is a lot of thing, one of them is that global warming. Global warming (also called climate emergency or climate crisis) is a process of increasing the average temperature of the Earth's atmosphere, oceans and landmasses. The global average temperature at the Earth's surface has increased by 0.74 ± 0.18 ° C (1.33 ± 0.32 ° F) over the last hundred years (Wikipedia, 2021).

If we have felt the heat over the last few years and the heat is different from last year's, that means, our planet has changing, from shade to hot. The cause of global warming are

1.      Greenhouse effect

All energy sources found on Earth come from the sun. Most of this energy is in the form of short wave radiation, including visible light. When this energy arrives at the Earth's surface, it changes from light to heat which warms the Earth. Earth's surface, will absorb some of the heat and reflect back the rest. Part of this heat is in the form of longwave infrared radiation into outer space. However, some of the heat remains trapped in the Earth's atmosphere due to the accumulation of greenhouse gases, including water vapor, carbon dioxide, sulfur dioxide and methane, which trap these radiation waves. These gases absorb and reflect the wave radiation emitted by the Earth and consequently the heat will be stored on the Earth's surface. This situation occurs continuously so that the earth's annual average temperature continues to increase.

2.      Tree felling

The felling of trees on earth causes global warming because the production of oxygen decreases, which causes heat. Compare to me when you are near a tree it will be different if you are near one where there are no trees.


The effect of global warming

Many effect of global warming, such as

1. Ice is melting at the poles.

      When the ice melts at the poles, the sea water will increase and make the rate of tsunamis and the sinking of an island will be high.

  1. Of course, our planet is warming.

      3. Global temperature tends to increase

      One might assume that a warmer Earth will produce more food than before, but this is not the case in some places. Southern Canada, for example, may benefit from higher rainfall and longer growing seasons. On the other hand, semi-arid tropical agricultural land in some parts of Africa may not be able to grow. Desert agricultural areas that use irrigation water from distant mountains can suffer if the winter snowpack, which serves as a natural reservoir, melts before the peak growing months. Food crops and forests are subject to greater insect and disease attack.

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