A new threat is here, and scientists say there's no way to stop it, as even remote parts of the world are seeing microplastic ...

And unlike the compounds that cause acid rain, these pollutants are almost impossible to get rid of. As government regulators focused on reigning in air pollution, companies were busy generating new ...

Acid rain harms plants and wildlife by altering the pH levels of ... desert tortoises and small mammals like critically imperiled Preble’s meadow jumping mice. Sources of soot include the burning of ...