The International Energy Agency (IEA) announced that greenhouse gas (GHG) emissions rose by 1.4% in 2017, the first rise in three years. GHG emissions have reached a historic high of 32.5 gigatonnes (Gt), a resumption of growth after three years of global emissions remaining flat. See https://www.iea.org/geco/. The increase in CO2e emissions, however, was not universal. While most major nations saw rises, some others experienced declines, including the U.S., United Kingdom, Mexico and Japan. The biggest decline came in the U.S., mainly because of growing installation of renewable sources of energy.
Improvements in global energy efficiency slowed down in 2017. The rate of decline in global energy intensity, the energy consumed per unit of economic output, slowed to only 1.6% in 2017, lower than the 2.0% decline in energy intensity seen in 2016.
The greatest growth in global energy demand was in Asia. China and India together represented over 40% of the increase. Energy demand in all advanced economies contributed over 20% of global energy demand growth, although their share in total energy use continued to fall.
Notable growth was also registered in Southeast Asia (which accounted for 8% of global energy demand growth) and Africa (6%), although per capita energy use in these regions still remains well below the global average.
In November 2017, the US EIA projected that growth in global CO2e emissions from energy-related sources will slow to 0.6% per year through 2040 despite increased energy consumption.
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