Source: http://web.ltjh.kh.edu.tw/~lide97/2/b4.html

Because the increase in sulfur dioxide and nitric oxide emissions causes the greenhouse effect, it also indirectly produces acid rain. Acid rain destroys the dirt in the air and enters the atmosphere to undergo chemical reactions. Therefore, the pH value of rainfall is lower than the normal pH value of water (acid rain is below 5.6ph). ) Acid rain will acidify the soil, increase harmful metals, and cause plants to become diseased and die, thus destroying forests, especially tropical forests.

Consequences of tropical forest loss:
1. Global warming (excessive CO2 content)
2. The world is becoming hypoxic
3. Plants and animals will not be able to survive

Deforestation in tropical forests has dangerous consequences
If a large area of ​​tropical forest land is cleared, even if carbon dioxide in the atmosphere increases intensively at the same time, it will still have an extremely serious impact on the release of carbon dioxide. Once forests are cleared, tropical soils will no longer be protected by forest cover, which prevents direct sunlight from reaching the soil and slows and disperses the damaging effects of rainfall. Under the combined effects of heavy rains and strong sunshine, the originally fragile soil will deteriorate at an accelerated pace, causing the land to become unsuitable for farming or afforestation in the short term. ​

In addition, deforestation will also disrupt the water cycle. When the trees at the top of the slope are cleared, rainwater washes away the soil, polluting the river and changing its flow. In low-lying areas, where the soil is directly exposed to sunlight and heavy rainfall, it will become a floodplain, and then turn into a swamp or arid land depending on local conditions.