
Global warming (the greenhouse effect) is the increase in the temperature of Earth's weather which has become popular to many people as one of the most important danger in the universe. Discussions about causes, solutions, postive and negative effects have made by human-beings.
One of the first subject people learned is that there are several causes of global warming. However, one of the most effective reason is Carbondioxide gas which most come from the combustion of fossil fuels and forests.