New analysis shows some 11 billion pounds of plastic particles are floating across the world—in only the top foot of seawater. But the study also points to hope, if countries act now.
And microplastics in the ocean don't necessarily stay offshore. When a bubble ascends from the depths, it collects bacteria and organic matter, then flings them into the air when it pops. Now, bubbles are doing the same with microplastics. These blow back onto land in sea breezes, as described in a 2020. If more microplastics are gathering at the water’s surface, that means more are available to go atmospheric.
”, Allen found such a ramp-up in peat, where more atmospheric microplastics were deposited over the decades as plastic production increased. But there was an exception: “What we could show with ours was a little drop during the economic downturn in 2009, and that was super interesting,” says Allen. As economic activity fell, so too did plastic production—at least briefly. “It means that you can have an almost immediate change in plastic by changing the way we use it.
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