Global warming is caused by greenhouse gas emissions into the atmosphere. The gasses fill up the atmosphere trapping the sunlight in and heats up the earth. If the heat of Earth increases, ice will melt causing a rise in sea level finally overflowing all land.
2) What causes global warming?
Global Warming is usually caused by human activities, e.g: Deforestation etc. Cars letting of harmful gases affects global warming too.
3) What has the goverment help to reduce global warming?
The goverment has invented solar panels to reduce the usage of electricity, created the 3R's, created groups to stop global warming and sending out the messages about what will happen if global warming continues.