Why was air passenger duty tax introduced?

Air Passenger Duty (APD) was introduced in the UK in 1994 as a way to generate revenue for the government and to address the environmental impact of air travel. The tax is levied on passengers flying from UK airports and is intended to contribute to the costs associated with air travel, such as airport infrastructure and environmental measures. Additionally, it serves as a means to encourage more sustainable travel choices by making air travel more expensive.