"On the last weekend in April, Tyler A. Frantz, an elementary school teacher from Annville, Pennsylvania, drove about an hour into the Pocono Mountains to learn more about trout, an animal that tells the story of two energy booms in his state’s history."

"The pipeline opponents say their fight is neither Republican nor Democratic."

"An analysis of drinking water sampled from three homes in Bradford County, Pa., revealed traces of a compound commonly found in Marcellus Shale drilling fluids, according to a study published on Monday."

"Even though Maryland has yet to permit any hydraulic fracturing for natural gas, emissions linked to the controversial drilling technique have been detected in the air in Baltimore and Washington, according to a new study."

"For the second straight year, a harsh winter killed more than a quarter of adult blue crabs in the Chesapeake Bay."

"It's Arbor Day, and some arborists in D.C. have a little more work to do thanks to a new website. It's called Get D.C. Trees and makes it easier than ever for residents to request new trees along their neighborhood streets."

"Maryland lawmakers on Friday voted to send Gov. Larry Hogan a two-year ban on the natural gas extraction process known as fracking."

"The natural gas extraction method known as 'fracking' would be banned in Maryland until October 2017 under legislation approved Monday night by the Maryland Senate."