. Many scientists believe that the current period of global warming is related to increased levels of

A. carbon dioxide in the Earth's atmosphere.
B. radon being released from the Earth's soil.
C. nitrogen in the Earth's atmosphere.
D. hydrogen in the outermost layer of the Earth's atmosphere.

Respuesta :

It is the concentration of CO2 that we suspect is driving climate change :)

please mark as brainliest! thanks!