
Atmospheric concentrations of CO₂e are rising due to increasing anthropogenic emissions. Unchecked, rising concentrations of CO₂e in the atmosphere will lead to catastrophic climate change.

Public electricity and heating in Annex I countries accounted for over 6.68 billion tons of CO₂e emissions annually in 2007.

Transport is responsible for approximately 20% of global anthropogenic emissions, or more than 4.63 billion tons of CO₂e annually. Source: UNFCCC, 2009.

Buildings are responsible for an estimated 1.45 billion tons of CO₂e in Annex I nations and over 20% of global anthropogenic emissions annually. Source: UNFCCC, 2009.

Annex I industry emissions are over 1.3 billion tons of CO₂e annually. Global industry emissions account for approximately 24% of annual anthropogenic emissions. Source: UNFCCC, 2009.

Emisisons from agriculture in Annex I countries totaled more than 1.43 billion in 2007 CO₂e emissions.

The EIA estimates that 2006 energy-related emissions from non-OECD countries accounted for approximately 30%, of global anthropogenic CO₂e emissions, or 15.4 billion tons. Source: EIA, 2009.

Biochar could potentially remove over 1 billion tons of CO₂e annually. In general, carbon management solutions could remove billions of tons of CO₂e from the atmosphere annually.
The aviation industry is responsible for an estimated 3%, or 1.5 billion tons, of annual anthropogenic CO2e emissions. At its current growth rate, the IPCC estimates that the industry will be responsible for over 5% of emissions by 2020.
Image: Boeing
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Trains are an efficient means of transport. Whether moving people or freight, trains have become a fast and low emissions option for transportation. With track availability as a binding constraint, increasing the scope of rail networks would support greater adoption of this low-carbon transportation option
Light duty vehicles that include cars and light trucks emit more than 3 billion tons of CO2e annually, or approximately 6% of total anthropogenic emissions according to the IPCC. The number of light duty vehicles in operation is expected to increase considerably between 2010 and 2020 due to global development.
Image: Wiki Commons
The transport sector is responsible for more than 6 billion tons of CO2e annually - approximately 20% of energy-related emissions.
Image: M. Ortiz
Reliance on petroleum, which supplies approximately 95% of transport energy, is driving CO2e emissions growth in the transport sector at a dangerous rate.