Question

How are atmospheric carbon dioxide and climate related?

A.
Carbon dioxide traps heat on Earth.


B.
Carbon dioxide creates Milankovitch cycles.


C.
Carbon dioxide blocks sunlight from reaching Earth.


D.
Carbon dioxide forms clouds, which increase precipitation

Answer 1

Carbon dioxide concentrations are rising mostly because of the fossil fuels that people are burning for energy. Fossil fuels like coal and oil contain carbon that plants pulled out of the atmosphere through photosynthesis over the span of many millions of years; we are returning that carbon to the atmosphere in just a few hundred years