Shows you the power of numbers. I get a different feel for each equivalent phrasing: - 1.1 million plastic particles per square kilometre - 1 bead per million

Shows you the power of numbers. I get a different feel for each equivalent phrasing: - 1.1 million plastic particles per square kilometre - 1 bead per million sq mm - 1 bead per square meter And I agree, the article should have used the latter.