Take our quiz to see how much you know about Earth Day!
When was the first Earth Day?
This American river caught fire in 1969 and prompted multiple pollution control measures.
This book helped launch the modern environmental movement, and led to the widespread ban of DDT.
What 1997 global agreement to reduce greenhouse gases was signed by virtually every country in the world except for the United States?
The worst American nuclear disaster in history resulted from a partial reactor meltdown in 1979 at which power plant?
In which state did the disastrous Exxon Valdez oil spill occur?
What US federal program was introduced in 1980 to clean up abandoned toxic and hazardous waste sites?
What does 350, the 'Magic Number' of climate change, refer to?
Which automobile pollution control technology became universally adopted following the Clean Air Act Extension of 1970?
What year did the United States EPA declared greenhouse gasses a threat to public health?