The amount of CO2 in the air is

According to statistics released by the International Energy Agency (IEA), global greenhouse gas (CO2) emissions have increased by 1.4%, to a record of 31.6. billion tons in 2012.

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China is at the top of the list of heavy waste water when CO ₂ reaches the atmosphere most. Despite efforts to use renewable energy sources and improve the efficiency of fuel sources, China remained the last year to 'contribute' to the largest increase in global CO2, with gas emissions increased by 300 million tons over the previous year. However, this is also one of the lowest increases in China's emissions over the past decade.

Meanwhile, US CO ₂ emissions have dropped by 200 million tons, thanks to the adoption of a clean energy policy, bringing the level of CO2 emissions of the world's largest energy consumer back to the middle 90s of last century.

Photo: Russell McLendon

In Europe, declining energy demand due to economic difficulties, coupled with efforts to increase renewable fuels, has helped the region reduce 50 million tons of emissions.

However, in Japan, CO2 emissions increased by 70 million tons, as efforts to improve energy efficiency did not compensate for increased emissions from fossil fuel use after the carpet. earthquake and tsunami at Fukushima nuclear power plant in March 2011.

Scientists believe that together with efforts to reduce greenhouse gas emissions, the world needs to limit the increase in global average temperatures below 2 degrees Celsius this century to minimize the effects of gas change Late, devastating crops as well as melting ice sheets at the ends of the Earth. To achieve this goal, by 2020, global CO ₂ emissions must be maintained at 44 billion tons.