Clean Air Toolbox for Cities Archives - State of the Planet

A smoggy sunset in Delhi, India.

Unraveling the Interconnections Between Air Pollutants and Climate Change

Getting rid of some air pollutants might aggravate global warming. Here’s how.

by |July 22, 2022
red sky

First Long-term Air Pollution Monitoring in Togo Reveals Concerning Levels

A new study finds that annual air pollution levels in the city of Lomé are, on average, four to five times greater than recommended by the World Health Organization.

by |March 31, 2022
faye mcneill headshot

Faye McNeill Combats Air Pollution, From the Molecular to the Global Scale

The first woman to earn tenure in Columbia’s chemical engineering department, McNeill is working for cleaner air in developing countries.

by |March 8, 2022