carbon dioxide is warming the Earth

You've probably heard that carbon dioxide is warming the Earth,but how does it work?Is it like the glass of a greenhouse or like an insulating blanket?Well, not entirely.The answer involves a bit of quantum mechanics, but don't worry,we'll start with a rainbow.If you look closely at sunlight separated through a prism,you'll see dark gaps where bands of color went missing.Where did they go?Before reaching our eyes,different gases absorbed those specific parts of the spectrum.