According to two recently published studies, CO2 emissions have increased rapidly in recent years and carbon sinks appear to be less efficient than expected. The level of carbon in the atmosphere is worrying.
Several recently published scientific studies have shown a worrying rate of CO2 in the atmosphere. This rate is the result of two phenomena: CO2 emissions and the absorption of greenhouse gases by carbon sinks such as forests or oceans. However, according to an international collaboration involving the Pierre Simon Laplace Institute for Climate and Environment Sciences (LSCE / IPSL), CO2 emissions of fossil fuels have increased faster than expected. These analyzes are the result of a collaboration of economists, carbon cycle and emissions experts, gathered around the Global Carbon Project and the subject of an article published in Proceedings of the National Academy of Sciences. . Based on global energy consumption, scientists reveal that CO2 emissions from the use of fossil fuels, the main cause of global warming, have accelerated from 1,1% per year in the 90 to 3% per year for the period 2000 to 2005.
In total, 7,9 billion tons of carbon were emitted globally into the atmosphere in 2005, compared to only 6 billion tons in 1995. Each person in Australia and the United States now emits more than 5 tons of carbon per year, for 1,9 ton in France, while in China, this figure is only 1 ton per year. Since the beginning of the industrial revolution, the United States and Europe have accounted for more than 50% of total global emissions accumulated over two centuries ago. China, meanwhile, represents less than 8%.
Most disturbing is that this increase in CO2 emissions is more alarming than the worst-case scenario adopted by the International Panel on Climate Change (IPCC), which suggests serious consequences for climate and climate change. impacts on ecosystems.
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