The mask in this image helps to visualise one of the main contributors to climate change, transportation emissions. This is a new way to tell an old story.
WHAT IT SHOWS: P Senthil Kumar, an auto (rickshaw) driver in Chennai, India, wears an LED face mask lit up with current air quality readings at Marina Beach. Part of the Unmask My City air pollution campaign, the mask changes colour dynamically according to local air pollution levels, with the colours matching Air Quality Index standards for PM2.5 particulates. Here, despite being on the open and breezy beach, it still glows yellow, showing pollution is roughly double World Health Organization standards for healthy air. While the Yellow range is deemed acceptable for the general population, it is a moderate risk to those unusually sensitive to air pollution.