Global emissions can be allocated to human activities in various ways. One of the most granular analyses is this one from the World Resources Institute (WRI), which breaks down total global emissions from 2005 into the following headline sectors:
Energy (66.5%)
– Electricity & heat (24.9%)
– Industry (14.7%)
– Transportation (14.3%)
– Other fuel combustion (8.6%)
– Fugitive emissions (4%)
Agriculture (13.8%)
Land use change (12.2%)
Industrial processes (4.3%)
Waste (3.2%)