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Practice problem

Climate Change — Overview & Effects

By Deena Hauze
A graph showing the carbon dioxide levels of the Earths atmosphere over time. There is a line at 300 parts per million that has a caption stating "for centuries, atmospheric carbon dioxide had never been above this line." It has increased from a bit over 300 parts per million in 1950 to a little over 400 ppm in the current day.

Carbon dioxide concentration change from NASA's website.

Image source: nasa.gov

Interpret the data: How many more parts per million of carbon dioxide are there now compared to 1950?

Choose one answer

Type a concept, like “slope” or “photosynthesis”.

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