There is less kerosene burned in all aviation in the world than is used in lamps and cookstoves in Africa and Asia. Aviation is really not the driver of climate change. Of all transport emissions aviation is 8% (in the US). 80% is cars and trucks.
Moreover, the aviation industry has a profit motive to reduce emissions because ever gallon of jet fuel saved is money saved.
The same applies to shipping (11% of global emissions), modern container ships are so fucking massive and slower than some wooden sailing ships from the 19th century because efficiency is the only real way they can make more money.