More than 1.6 million people live in these areas, which have sulfur dioxide pollution high enough to harm human health and the environment. “The EPA’s delay in cleaning up this harmful air pollution ...

Following power plant closures and EPA intervention, Detroit and Downriver are seeing lower levels of SO2 pollution. One ...

SO2 and other oxides of sulfur (SOx) are harmful to human health. High levels of sulfur oxides in the air can harm plant growth, and these emissions also have a habit of causing acid rain ...

The bay checkerspot butterfly, found in Santa Clara County, California near the San Francisco Bay as well as San Bruno Mountain and Edgewood County Park, was listed as threatened in September 1987 ...