Shipping CO₂ emissions compared with global CO₂ (values in million tonnes CO₂)

Year

Global CO₂

Total shipping

% of global

International shipping

% of global

2007

31,409

1100

3.5%

885

2.8%

2008

32,204

1135

3.5%

921

2.9%

2009

32,047

978

3.1%

855

2.7%

2010

33,612

915

2.7%

771

2.3%

2011

34,723

1022

2.9%

850

2.4%

2012

35,640

949

2.7%

796

2.2%

Average

33,273

1016

3.1%

846

2.6%

Shipping GHGs (in CO₂e) compared with global GHGs (values in million tonnes CO₂e)

Year

Global CO₂e

Total shipping

% of global

International shipping

% of global

2007

34,881

1121

3.2%

903

2.6%

2008

35,677

1157

3.2%

940

2.6%

2009

35,519

998

2.8%

873

2.5%

2010

37,085

935

2.5%

790

2.1%

2011

38,196

1045

2.7%

871

2.3%

2012

39,113

972

2.5%

816

2.1%

Average

36,745

1038

2.8%

866

2.4%