What Do You Know About Climate Change? What do you know about climate change science? Put your climate knowledge to the test with this quiz! 12 Questions by Columbia_University 09/03/2018 answers Play What is the primary source of energy for Earth's climate system? Heat from Earth's interior The Sun Electricity generating power plants Oil & gas Why are greenhouse gases like CO2 & methane important to Earth's climate? They allow heat from Earth to escape the atmosphere They trap the Sun's energy so that Earth's surface is warm What happens when CO2 & other greenhouse gases increase in our atmosphere? Average global temperatures decrease Average global temperatures increase The Earth's magnetic field changes direction … and 9 more awesome questions! Check them out by clicking “Play”.