12 - Integrating Climate into our Strategy A CLOSER LOOK The Challenges of the 2°C Target The world economy must be profoundly reshaped to keep the average global temperature increase below 2°C by 2100 compared to pre-industrial levels. Energy, which represents nearly 70% of global greenhouse gas emissions, is a key factor in the balancing act required. The Facts - Global greenhouse gas emissions amounted to 49 Gt CO2-eq in 2010. - If current trends were to continue, cumulative global emissions would reach around 75 Gt CO2-eq in 2035. -T  he IEA’s 2°C scenario1 aims to limit emissions to approximately 35 Gt CO2-eq in 2035. This reduction in emissions entails sharply decreasing the carbon content (or “carbon intensity”) of GDP. In its 2°C scenario, the IEA estimates that a decline of 3 to 4% a year would be required between now and 2035. 31% COAL 7% INDUSTRY 11% AGRICULTURE OIL AND GAS ACCOUNT FOR 37% OF GREENHOUSE GAS EMISSIONS RELATED TO HUMAN ACTIVITY 49 (±10%) Gt CO2-eq 2010 14% OTHER 23% OIL 14% GAS Source: IEA, CO2 Emissions from Fuel Combustion, 2014 Edition. 1  or the purposes of this report, “2°C scenario” refers to the pathways outlined F in the 450 and 2°C scenarios published by the IEA in World Energy Outlook and Energy Technology Perspectives, respectively. These scenarios aim to limit the average global temperature rise above pre-industrial levels to 2°C by 2100. - Roughly 85% of emissions related to oil and gas are generated during product end-use; the remaining 15%, during production and refining.