QuantumChemist wrote:
There have been quite a few environmental studies that have shown that waste plastics are starting to become part of the geochemical top layer of Earth. One study I read found it in volcanic rocks that form from lava reaching the ocean. The plastics from the ocean water melt into the rock as it cools. It changes the chemical makeup of the rock. You could consider them almost a different mineral now.
Along those lines, this process also increases exposure leading to adaptation for living species. A few bacteria have developed that can digest certain plastics, reducing them down into much smaller organic chemicals (i.e. not microplastics). There is also a type of clam/oyster that can break down polymers in the ocean. Unfortunately, some plastics come from toxic compounds (like styrene or phenol), so they can reform those as the carbon bonds break apart in the backbone chain. Just because something can break plastic down does not always mean it can make it into something harmless to other living things.
Parts of the environment will adapt to plastics, some will not. Whether or not humans do is another question for another time.
So...
The dinosaurs, and the plants they ate, and lived among ...got buried in the earth's crust...got fossilized...and became petroleum. Then a hundred million years later ...these ground dwelling apes (humans)that now live on the earth's surface began pumping this fossilized plant liquid out of the ground...and used it to make artificial solid material for stuff they use (plastic).
So humans are now a geological force that...takes fossilized plant material from deep in the earth's crust...and redistributes it as 'fossilized' human artifacts on top of the earth's crust?
I am just "thinking aloud" trying to conceptualize this.