International commercial aviation produces as much CO2 as Africa. The European Union plans to double the numbers of aircrafts by 2020. Can the earth handle a growing number of carbon dioxide-emitting planes in the upper atmospheric strata forever? The reduction of greenhouse gases is one of the main challenges of the 21st century and the aviation industry knows it will have to develop a "sustainable" aviation. Decline or regression is not an option. So, commercial aviation is looking for the answer in a field that has always served it well: scientific and technological innovation all over the world. Luckily, some interesting solutions are actively researched by those who are inventing the eco-friendly aviation of the next 50 years.
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