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