The US announced its commitment in April this year: the Obama administration’s target is to reduce the emission of harmful substances by 26-28 percent below 2005 levels by 2025. The commitment relies on, among other things, vehicle efficiency standards, and the regulations of the carbon dioxide emission of power plants and the methane gas emission of the gas and oil sectors. Last October EU Heads of State and Government agreed to cut greenhouse gas emissions on EU level by at least 40% by 2030 compared to 1990 levels. The 20% target set for 2020 was almost achieved in the EU in 2014 (19%). China is responsible for 25% of the global CO2 emission. While the country is less supportive of reductions, president Xi Jinping pledged to increase the share of non-fossil fuels in the country’s energy mix to 20% by 2030 from 10% in 2013. Russia does not make its plans public these day, but years ago the then president Medvedev’s objective was to reduce greenhouse gas emissions by over 30 billion ton i.e. by 25% by 2020 compared to 1990 levels. Hungary has pledged to cut greenhouse gas emission by 20 percent from 1990 levels, to increase the share of renewable resources in the total energy consumption to 20%, and to improve energy efficiency by 20% by 2020.

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