Instructional Video4:47
SciShow

How Studying Venus Saved Earth

9th - Higher Ed Standards
Scientists discovered a hole in the ozone layer in 1980, and by 2000, the hole was three times the size of the United States. Through global efforts, scientists discovered the cause and worked together to get countries to implement a...
Instructional Video2:02
1
1
National Academies of Sciences, Engineering, and Medicine

Greenhouse Gases—Climate Change, Lines of Evidence: Chapter 3

7th - 12th Standards
Greenhouse gases prevent the earth from freezing over, so how do they cause global warming? The third installment in a seven-part series explains what greenhouse gases are, how they help us, and why they are important. It links an...