Even though its still cold outside, the Earth's temperature is rising due to global warming.

It's well accepted by scientists that greenhouse gases, like carbon dioxide (CO 2), trap heat in the Earth's atmosphere.
By increasing the levels of greenhouse gases, human activities are heating up the Earth.
Congratulations for Submitting the Correct Answer! |
Name |
County |
Michelle Donlan |
Butler |
Beth Sheckler |
Carbon |
Amber Eisel |
Mercer |
Jen English |
Allegheny |
Steph |
Butler |
Sally |
Allegheny |
Mike Donlan |
Philadelphia |
Earlier this week, we had trouble with our Submission button. We apologize if you answered the question and we did not post your name! |

Pennsylvania Environment and Ecology Standard |
Environmental Health: Human Actions (4.3) |
