Pollution often comes from industrial factories pumping hazardous waste into the air or water supplies. These are the most polluted cities in the United States ...

It is not uncommon for people in Canadian regions like Calgary to buy used cars. Sometimes, with a little effort and research, you can get great deals on sedans and SUVs. From the outside, the car may ...

A new study reveals open fires account for over 50% of Delhi's particulate matter pollution, causing visible smog. However, ...