Top 1: United States
A 2014 research led by Dr. Damon Matthews, an associate professor on Geography, Planning and Environment at the Concordia University in Canada, determined the US to be the biggest global warming contributor. This supports the World Resources Institute analysis where the US is responsible for 27% of the total global carbon dioxide emissions from 1850 until 2011.
According to the World Resources Institute, the US will need to up its pace on reducing emissions from an annual 1.2 percent between 2005 and 2020 to a 2.3 percent to 2.8 precent reduction between 2020 and 2025 for the US to reach its professed goal of reducing emissions by 26% to 28% come 2025.
Top 2: China
China is responsible for almost a quarter of the total global greenhouse gas emissions. From 2010, China became both the leading global energy producer and consumer.
In response to these findings, China has committed to reducing greenhouse gas emissions by 60 to 65 percent against the 2005 levels and to using low carbon sources for 20% of China’s energy by the year 2030.
Top 3: Russia
Russia currently ranks as the third biggest global warming offender and has promised to reduce gas emissions by 25-30% by 2030.
Top 4: Brazil
Brazil’s tropical deforestations in favour of cattle grasslands, soy plantations and logging has had significant impact on global warming. Brazil has committed to specific deforestation policy changes and to increase electricity production from renewable sources to 20% of the entire production come 2030.
Top 5: India
India is the third largest greenhouse gas producer outside of the European Union and has 13 of the 20 WHO-rated most polluted cities in the world. India has committed to use renewable and low-carbon sources for 40 percent of its total electricity production by 2030. Delhi will also hold a No-Car Day on January 22, 2016 as an effort to being public attention to the pollution that plague the country.
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