As a thick haze descended over New Delhi last month, air quality monitors across the Indian capital began to paint a grim picture.
The smoke, fed by the seasonal burning of crops in northern India, was causing levels of the toxic particle PM 2.5 to spike, a trend residents could track in real time on the Global Environment Monitoring System for Air (GEMS Air) website.
By early November, GEMS Air showed that concentrations of PM 2.5 outside New Delhi’s iconic India Gate were ‘hazardous’ to human health. In an industrial area north of the Indian capital, the air was 50 times more polluted.
GEMS Air is one of several new digital tools used by the United Nations Environment Programme (UNEP) to track the state of the environment in real time at the global, national and local levels. In the years to come, a digital ecosystem of data platforms will be crucial to helping the world understand and combat a host of environmental hazards, from air pollution to methane emissions, say experts.
“Various private and public sector actors are harnessing data and digital technologies to accelerate global environmental action and fundamentally disrupt business as usual,” says David Jensen, the coordinator of UNEP’s digital transformation task force.