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 ...

In 1990, the Clean Air Act was updated by Congress to eliminate acid rain by reducing power plant pollution. Unfortunately, ...

Sources of soot include the burning of fossil fuels and fracking. Reduced visibility and haze are primarily caused by soot, which also damages forests and crops by reducing nutrients in soil. Sulfur ...