A carbon emission label is like a tag or sticker you might find on a new product in a store. It tells you information about how much carbon dioxide (CO2) that product is creating when it is used. CO2 is a gas that comes from burning fossil fuels, like oil and coal, and it is bad for the environment. A product with a low carbon emission label means it uses less fossil fuels and makes less CO2. A product with a high carbon emission label means it uses more fossil fuels and makes more CO2. So by looking at a carbon emission label, you can decide which product is better for the environment and make the right choice.