You are correct in the sense that the CO2 actually reflects sunlight.<quoted text>
Item two is incorrect. Reflected, not absorbed.
What I meant to say is that the CO2 is the cause of the sunlight that is trapped on earth. The sunlight hits the ground, reflects, and then is reflected back by CO2. Therefore, the CO2 makes the earth "absorb" the sunlight, by keeping it from escaping.
So same, difference.
CO2 still causes a build-up of heat from the sun.