Image: Flying wing: The Boeing X-48B, an unmanned prototype with a 6.4-meter wingspan, has a blended-wing design that could one day replace that of today's commercial planes. Credit: NASA From Technology Review:
Advanced technology won't be enough for the industry to meet its own greenhouse-gas targets.
Last week the global aviation industry called on the United Nations to establish a single, worldwide policy for reducing aviation greenhouse-gas emissions, in an attempt to avoid a costly network of regional regulations. The industry proposed two primary goals--that by 2020 it should stop increasing its greenhouse emissions, and that by 2050 it should cut its emissions by 50 percent compared to 2005 levels.
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