While biodiesel provides a cleaner-burning alternative to petroleum diesel, it produces CO2 and hazardous wastewater during ...

Biodiesel is a cleaner fuel alternative to petroleum diesel, but making it still creates pollution—especially harmful ...

Throughout the night, great potoos emit a loud, moaning growl that has earned the bird a mythical status, with some ...

From wild ponies in Virginia to bison in Yellowstone, here are seven wildlife-rich destinations—and tips on how to be a ...

More than 100 years after bison from other regions were introduced to the park, the two genetically distinct herds have ...