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Probably the most worrying threat to our planet at the present time is global warming.

The effects of global warming spread through the whole world and could be very dangerous for human life.

And humans are to blame for it, because of population growth, deforestation, pollution, and the use of non-environmentally safe products.

Many problems could result from global warming.

First of all, global warming raises the overall temperature and cause ice caps to melt, which makes the water expand.

Rising sea level could cause the flooding of low lying coastal areas and cities.

Second, deforestation has had and still continues to have a tremendous effect on global warming due to the increases in green house gases it causes.

But there are several things we can do to solve the problem of global warming.

And the first step is stop producing of CO2 and switch from burning fossil fuels to renewable energy.

If everybody starts making small and easy steps, such as reducing, reusing, recycling, buying energy-efficient products, planting a tree, and changing a car to a bicycle, we can help to reduce global warming.