Spain’s Prime Minister Pedro Sánchez on Friday outlined plans to tax commercial flights and private jets, an initiative meant to combat planet-warming pollution from aviation that could hike the cost of business travel.

“We are working together with other countries to tax premium-class flights and private jets,” Sánchez told delegates at a summit in Belém, Brazil, that serves as a prelude to the United Nations COP30 climate conference beginning on Monday. “It is only fair that those who have more — and pollute more — pay their fair share.”

Sánchez’s comments foreshadow an expected declaration at COP30 by a number of countries, building on an initiative with France and Kenya, to increase levies on the most expensive forms of air travel, with a portion of the proceeds going to help the mos

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