Transcribed
Global CO2 emissions by source: Baseline, 1980-2050
Figure 3.7. Global CO2 emissions by source: Baseline, 1980-2050 60 Industrial processes 50 Power generation Energy transformation' 40 Transport 30 Industry 20 Residential Services 10 1Other sectors 1980 1990 2000 2010 2020 2030 2040 2050 Note: The category "energy transformation" includes emissions from oil refineries, coal and gas liquefaction. Source: OECD Environmental Oudiook Baseline; output from IMAGE.
Global CO2 emissions by source: Baseline, 1980-2050
shared by W.E.R.I on Jul 13
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Carbon-dioxide emissions
CO2 emissions are projected to remain the largest contributor to global GHG emissions, driven by
economic growth based on fossil fuel use in the energy and industrial sector...
s. The International Energy Agency (IEA) estimates that unless policies prematurely close existing facilities, 80% of projected 2020
emissions from the power sector are already locked in, as they will come from power plants that are
currently in place or under construction (IEA, 2011b). Under the Environmental Outlook Baseline, demand
for energy is projected to increase by 80% between 2010 and 2050. Transport emissions are projected to
double between 2010 and 2050, due in part to a strong increase in demand for cars in developing countries,
and growth in aviation (Figure 3.7). However, CO2 emissions from land use, land-use change and forestry
(LULUCF), driven in the last 20 years by the rapid conversion of forests to grassland and cropland in
tropical regions, are expected to decline over time and even become a net sink of emissions in the 2040-
2050 timeframe in OECD countries (Figure 3.5 and 3.8 and Box 3.2).
------ Other gases --------------
Methane and nitrous oxide emissions are projected to increase to 2050. Although agricultural land is
expected to expand only slowly, the intensification of agricultural practices (especially the use of
fertilisers) in developing countries and the change of dietary patterns (increasing consumption of meat) are
projected to drive up these emissions. At the same time, emissions of HFCs and PFCs, driven by increasing
demand for coolants and use in semiconductor manufacturing, will continue growing rapidly.
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