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.
- 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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