In 2015, airlines burned through 276 million tons of jet fuel. That’s roughly 7 percent of global oil products, and leads to direct emissions that make up 2.7 percent of global energy-related CO2 emissions. Worse yet, direct CO2 emissions are estimated to account for only half the sector’s total global warming impact, with other greenhouse gas emissions and the formation of contrails that trap heat in the atmosphere also having a large contribution.
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