Introduction to Global Warming

Global Warming is one of the most important issues of the twenty-first century. Global warming refers to the increase of the Earth's average surface temperature, due to the burning of fossil fuels like oil and coal cause greenhouse gases to escape into the air and these gases are causing most of the warming. Another cause is cutting down trees. Trees soak up carbon dioxide, one of the greenhouse gases, from the air.There are already some changes happening because of global warming. Sea level is rising and some animals are already moving to new homes. There may be some kinds of plants and animals that disappear completely because they can’t move to new homes. There may be more storms and floods. It’s already too late to stop global warming completely.