The Black Triangle gets its name from the coal burned by nearby power plants. Decades of acid rain generated by power-plant emissions have devastated the region's ecosystems. Yet the treeless ...

For example, acid rain dissolves limestone to form karst, a type of terrain filled with fissures, underground streams, and caves like the cenotes of Mexico's Yucatán Peninsula. Back up on the ...

He shows that surrounding watersheds help regulate the effect of acid rain on lakes and ponds, in some cases reducing acidity over time. Through major grants, the National Science Foundation has ...

“The science is very clear that this air pollution can do devastating ... Nitrogen oxides are produced by burning fossil fuels and contribute to ozone formation, acid rain, nutrient pollution and poor ...

Sulfur is rarely found pure in the ground. It is an impurity which is removed from fossil fuels because it causes acid rain when fossil fuels are burned.