Airplanes are a minor contributor to global greenhouse-gas emissions, but their share is sure to grow as more people travel in coming years — and that has the aviation industry facing the prospect of tighter environmental regulations and higher costs.
A Boing 777X plane takes off at the Farnborough Air Show fair in Farnborough, England, July 18, 2022.
At Monday’s opening of a huge aviation industry show near London, discussion about climate change replaced much of the usual buzz over big airplane orders.The weather was fitting. The Farnborough International Airshow opened as U.K. authorities issued the first extreme heat warning in England’s history. Two nearby airports closed their runways, one reporting that heat caused the surface to buckle.Jim Harris, who leads the aerospace practice at consultant Bain & Co.
Jet fuel use by the four biggest U.S. airlines – American, United, Delta and Southwest — rose 15% in the five years leading up to 2019, the last year before air travel dropped, even as they updated their fleets with more efficient planes. Sustainable fuel is biofuel made from cooking oil, animal fats, municipal waste or other feedstocks. Its chief advantage is that it can be blended with conventional fuel to power jet engines. It has been used many times on test flights and even regular flights with passengers on board.
Several companies are designing and starting to build electric-powered planes, but most are small aircraft that take off and land vertically, like helicopters, and they are about the same size — with room for only a few passengers. Even some in the airline industry, such as United Airlines CEO Scott Kirby, have mocked carbon offsets, which companies can get for things like paying to plant trees.
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