Why is packaging bad for the environment?

Packaging is bad for the environment because it's not biodegradable and if it's not then it will have to be burned which therfore causes co2, Causing greenhouse gasses that can cause global warming. And because we cut down trees and it seems like the more we recycle the more of an increase we get with one, there is actually just as much of a decrease with the other. And the more we cut down trees, the more animals lose there homes (shelter), the more bees and such can't pollinate the flowers on the trees, and when we cut down our trees it takes away the shade that they would give us and the relief of the heat that we would get just by having them there to block the sun. I guess there are many reasons why packaging is bad for the environment but, it's mostly because it's not biodegradable and because of how much packaging we do. And the more that we do this the more resources it takes us. Julianna Arthur