“The planet's average surface temperature has risen about 1.62 degrees Fahrenheit (0.9 degrees Celsius) since the late 19th century”(NASA). Climate change has been going on for a long time but people have only become very aware of it in recent years. It started during the Industrial Revolution when fossil fuels became a big source of energy for us and it’s mainly caused by greenhouse gasses. Greenhouse gasses are warming the earth by trapping heat in our atmosphere, the greenhouse effect. Carbon dioxide is the greenhouse gas that people are most familiar with and it mostly comes from the burning of fossil fuels, which we have been doing since the 1800’s.