The USA is known as a country for the free and the brave. But, with much freedom comes a lot of responsibility. Over the past ...

TruckInfo.net analyzed data from the National Highway Traffic Safety Administration to see where pedestrians are most at risk.

The majority of these cities – 13 – are in the world’s most populous country ... one of the smallest but most dangerous pollutants. PM2.5 comes from sources like the combustion of fossil ...

The majority of world’s top 20 most polluted cities last year were in Asia ... one of the smallest but most dangerous pollutants. PM2.5 comes from sources like the combustion of fossil fuels, dust ...