Transport is one of the world's biggest polluters, but on the path to net zero, aviation is reinventing itself, potentially building a new kind of jet age.
Malaysia seeks to ensure that the poor benefit from fuel subsidies instead of the rich, but rationalisation can also contribute towards sustainability. Savings from removing fuel subsidies can be used to develop low-carbon alternatives.
Airlines such as Lufthansa and Ryanair are clashing over the European Union's airport slot rules. Are "ghost flights" a thing, or are the carriers just stoking climate fear?