A new study claims that air pollution kills 3.3 million people world-wide every year.
Researchers from Germany, Cyprus, Saudi Arabia and Harvard University wrote the report, which was published today in the journal Nature.
The scientists say that the air pollution death toll could hit 6.6. million by 2050 if changes are not made, notes The New York Times.
The study found that China led air pollution-related deaths with almost 1.4 million, while India was second at 645,000 and Pakistan had 110,000. The U.S. clocked in at 54,905 deaths, which were mostly caused by power plant (16,929) and agriculture (16,221) air pollution.
The U.S. and China reached a historical agreement in 2012 in which China would cap its carbon emissions for the first time in the country's history, while the U.S. promised to make strong reductions by 2025, noted The Guardian.
However, it was revealed this week that China has been using 14 percent more coal energy from 2000-2013 than was previously reported, according to the U.S. Energy Information Administration