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Four cities cracking down on diesel vehicles to improve air quality

Overview

Four of the world’s biggest cities are to ban diesel cars from their city centres by 2025, in order to improve air quality. The mayors of Paris, Madrid, Athens and Mexico City announced the plans at the C40 Mayors’ Summit on climate change. This bold move could lead other cities to take action, and help to accelerate a shift away from diesel.

Diesel engines are seen as major contributors to air pollution in cities, as they exude nitrogen dioxide and tiny particulates. These pollutants have a known impact on human health: they can cause heart attacks, breathing difficulties and even premature death.