Exponential rise of plastic pollution in ocean sediments mirrors soaring global production

40

3.0m

35

World plastic

production, tonnes

Right-hand scale

2.5

30

2.0

25

Sediment plastic

deposition

Particles per 10cm2

of ocean floor per year

Left-hand scale

20

1.5

15

1.0

10

0.5

5

0

0

1950

1960

1970

1980

1990

2000

2010

40

3.0m

35

World plastic

production, tonnes

Right-hand scale

2.5

30

2.0

25

Sediment plastic

deposition

Particles per 10cm2

of ocean floor per year

Left-hand scale

20

1.5

15

1.0

10

0.5

5

0

0

1950

1960

1970

1980

1990

2000

2010