The pollutants are carbon monoxide, lead, nitrogen oxide, volatile organic compounds, particulate matter and sulfur dioxide.
Photo courtesy of USAID via Flickr.
The number of people living on less than $1.25 a day decreased from half the developing world to 21% between 1981-2010, the most recent numbers available from the World Bank (the chart only shows developments from 1981-2008). During the same period, the world’s population increased by 59%.
Brighten your day some more with these 5 statistics.