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Well, it's not that filling landfills isn't bad. But, what's worse for the environment than being wasteful is greenhouse gases. So if shoving all of that stuff
by mattmaroon 7y ago
Well, it's not that filling landfills isn't bad. But, what's worse for the environment than being wasteful is greenhouse gases. So if shoving all of that stuff in a landfill leads to less greenhouse gas emission than recycling, it's better right now.
That was exactly my point. When you actually dig into it, you find that current forms of plastic recycling (and, in fact, most materials) probably create more greenhouse gases than simply making new plastic, often by a wide margin. This article talks about how this new type of recycling might be more efficient in terms of reusing the old plastic, but not the net effect on greenhouse gases which is what we should be paying attention to.
If it takes considerably more energy to do this process then it does the old processes or just making new plastic, it could be a net loss for the environment.
If we're forced to choose between more landfills or more greenhouse gas emissions, landfills are an easy pick.
- ZeroGravitas 7y agoThis is theoretically possible but factually incorrect. Recycling plastic is better than landfill in terms of greenhouse gases (and economics and a few other measures). Burning the plastic for energy is also generally better than landfill, though that might change if we otherwise have a 100% renewable grid since it would no longer be displacing dirtier fossil fuels. There's actual science I could link to but I'll just point out one obvious red flag that gets repeated a lot: If you wash the plastic in water heated with electricity generated from coal as part of the recyclong process then it's got a worse carbon footprint than not recycling it. Apparent solution proposed by the people who use this factoid: stop recycling plastic. Solution for anyone not under the sway of the fossil fuel industry: stop burning coal for electricity. Basically everything is bad for the environment if you use coal powered electricity to do it. Coal sucks as an electricity source. edit to add actual science: Bernardo, C. A., Simões, C. L., & Pinto, L. M. C. (2016, October). Environmental and economic life cycle analysis of plastic waste management options. A review. In AIP Conference Proceedings (Vol. 1779, No. 1, p. 140001). AIP Publishing. Available at: https://aip.scitation.org/doi/pdf/10.1063/1.4965581 https://aip.scitation.org/doi/pdf/10.1063/1.4965581.
- mattmaroon 7y agoThose studies always fail to take into account how plastic is actually recycled. They don't count the carbon footprint involved in a round trip to China, where most of it ends up burned, or dumped into landfill or oceans anyway. Or the carbon footprint of extra garbage trucks and sorting facilities. Etc. It's definitely not economical. Talk to someone who works in recycling today. China stopped accepting it and it's backing up. That doesn't happen to aluminum because aluminum is economical. They also base their results on methane production. It's increasingly being captured for use as a fuel, and the EPA has required it of larger facilities for decades. Moving away from fossil fuels is the obvious solution regardless, no argument there. If we did that, it practically wouldn't matter whether we recycled it or not.
- ZeroGravitas 7y agoI don't understand the reference to methane? Is that relevant to plastic recycling or is that just throwing a reference to a random pro-landfill argument that anti-recycling people often use? If you are then anaerobic digestion of separated food waste/organic material are far better (again both economically and environmentally) than throwing it all in a landfill and trying to capture the gas later (especially as there other valuable/harmful outputs too). And that's what every well run government in the world is doing, because they've done the sums.
- mattmaroon 7y agoPlastic in a landfill releases methane, which is a very potent greenhouse gas if not burned. The studies comparing greenhouse gas emissions of recycling vs landfill/replacement (including the one you linked IIRC) rely on that for their argument that recycling is better in terms of greenhouse gas emissions. It definitely takes less energy (and thus fossil fuels and thus carbon) to landfill a plastic bottle and make a new one or plastic bottle makers would be much more adamant to recycle. We can safely rely amoral corporations to do what's cheapest. I'm not anti-recycling and can't imagine who even would be. I'm in favor of whatever reduces greenhouse gas emissions the most. I just think that the biggest problem in modern environmentalism is that they are optimizing for something that isn't much of a problem (landfills) at the expense of something that is (greenhouse gases) without even thinking about it. It's well-meaning, they just don't even know that certain materials and recycling programs are making that trade.