Global warming is one of the most important issues and is the biggest danger to humans. 
Causes of the earth is heating up due to excessive human use and vehicle traffic factory emissions released into the environment. Especially deforestation timber is also one of the main causes of global warming. 
Consequently, causing the greenhouse effect, ecological imbalances affect the health and life of humans. 
to minimize the problem of global warming, we should exploit the forest resources reasonably, saving electricity and perform three principles: reduce, reuse and recycle, ...
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