Worldwide, there are now 23 cities with populations in excess of 10 million - known as megacities. With this number set to increase in the coming decades, particularly in developing countries, a new report analyses the impact of both megacities and rapid urbanisation on climate and air quality.
The new report, Impacts of Megacities on Air Pollution and Climate, published by the IGBP-sponsored International Global Atmospheric Chemistry project (IGAC) and the World Meteorological Organization (WMO), was launched at a major international science conference in Beijing recently.
The conference, organised by IGAC, sought to bring world-leading experts together to discuss how the world's atmosphere is changing and was entitled Atmospheric Chemistry in the Anthropocene.
The megacities report was discussed at the conference and the international journal Nature has published a short article on the report, Megacities pose serious health challenge.