We think that anything labeled "biodegradable" veers towards the banana end of the spectrum. But in reality, it's much closer to that bullshit, impossible-to-open plastic packaging. When composted with carefully maintained moisture and temperature, biodegradable plastics will indeed degrade as intended. But toss it in the garbage, standard recycling, or even the compost heap in your backyard, and you might as well set that plastic on fire for all the good it's going to do the environment. Your so-called biodegradable plastic is either going to degrade in a process your distant descendants will be able to witness, or it will degrade improperly and release methane gas, which is basically the worst thing you can release, short of locust plagues.
And that factors in the fact that locust plagues are usually bookended by frog rain and 40 days of darkness.
But don't get too down on yourself for throwing biodegradables in the trash and assuming that science magic would unfold, as most communities lack proper composting facilities. While their numbers are growing, there's a good chance that seeking out biodegradable packaging in your neighborhood will help about as much as seeking out sunscreen in a firestorm. And good luck on that search, as the FTC recently cracked down on companies whose claims of making biodegradable plastics were as accurate as our claims of winning The Great North American Sex Contest (In truth, we only made it to the semi-finals in Winnipeg).