What is global warming?
Global warming is the result of an average increase in climate in the past 50-100 years. As the planet heats up the effects are drastic. There may be changes in the amount of rainfall, a change in the sea level, and a danger of extinction to many different species, including humans. The most dangerous thing is that we, as humans, are mainly causing these issues.
What causes global warming?
Humans create the main causes of global warming. Pollution in the air, water and the land are causing holes in the ozone layer. The role of the ozone layer is to protect us from the sun. With holes in the ozone layer, we have no protection from the sun and are vulnerable to it.
What are the effects of global warming?
The effects of global warming are very dangerous. It makes the sea level rise, spreads different tropical diseases, and changes both the agriculture and the weather. In some places of the world those things are already beginning to occur. Global warming is making more tropical storms happen and it is making them more powerful and destructive.
How bad is global warming?
The Earth is warmed by rays of the sun, which reflect back into space. The atmosphere is made up of gases called greenhouse gases. These gases trap some of the sun's rays in the Earth's atmosphere and lets some back out. This keeps the earth at a normal temperature, which is safe for all living things. Some harmful gases are let out into the Earth's atmosphere and build a thick layer around the Earth, which prevents the sun's rays from being let back out into space. If too much heat is kept in the atmosphere the Earth will get too hot and will be harmful to living things.