Every year, around 400 million tons of plastics are produced worldwide, a number that increases by around 4% annually. The emissions resulting from their manufacture are one of the elements contributing to climate change, and their ubiquitous presence in ecosystems leads to serious ecological problems.
PLA as in polylactic acid, like 3d printer filament? From my understanding that stuff is recyclable, but only if you get it to a recycling center with the right equipment. It doesn’t break down much faster than PETG in the environment afaik.