What is the greenhouse effect? How does it impact Earth’s temperature? Students design a hands-on experiment about the greenhouse effect and Earth’s changing climate.
The greenhouse effect is a natural process, keeping the Earth warm enough for life to exist. Greenhouse gases in the atmosphere, including carbon dioxide, methane, nitrous oxide and water vapour, trap heat from the sun. The atmosphere acts like the glass in a greenhouse. Most scientists believe the Earth is getting warmer because of greenhouse gas emissions from human activities, in particular the burning of fossil fuels for things like manufacturing, transportation and power.