So what I’m reading is that these gas absorb the light from the sun and keeps it trapped on the earth.
What I don’t get is how is it letting the light and heat in from the sun in, but not the light and heat reflected from the Earth out? If it’s a barrier, shouldn’t it block both ways? If it’s not a barrier, how is it trapping the heat?
In: 950
Ask yourself what happens to a car parked in the sun with its windows up? Answer: the interior heats up. Why? Because the car windows let in the sunlight but do not let out the resultant heat (that the sunlight converts into when it hits the interior of the car). What happens if the windows are rolled down? Answer: the interior cools down. Why? Because the resultant heat is now able to escape. The earth’s atmosphere acts similarly to the glass windows in a car.
Latest Answers