The gurney in the the execution chamber at the Oklahoma State Penitentiary in McAlester, Okla. On Monday the Supreme Court voted 5-4 in a case from Oklahoma that the sedative midazolam can be used in executions without violating the prohibition on cruel and unusual punishment. Sue Ogrocki/AP hide caption

itoggle caption Sue Ogrocki/AP

A plume of steam billows from the coal-fired Merrimack Station in Bow, N.H. in January 2015. Jim Cole/AP hide caption

itoggle caption Jim Cole/AP

Crews perform dredging work along the upper Hudson River in Waterford, N.Y. General Electric's cleanup of PCBs discharged into the river decades ago will end this year. Mike Groll/AP hide caption

itoggle caption Mike Groll/AP

Steam from a coal-fired power plant is silhouetted against the sun near St. Marys, Kan. Industry groups say there should be a far more aggressive consideration of costs of regulation than the Obama administration took into account. Charlie Riedel/AP hide caption

itoggle caption Charlie Riedel/AP

Melissa Downer and her family moved to Camp Minden, La., 11 years ago and live on three acres. The mother of three young daughters says they'll move if the M6 is burned in the open air. Kate Archer Kent/Red River Radio hide caption

itoggle caption Kate Archer Kent/Red River Radio

Corn farmer Jerry McCulley sprays the weedkiller glyphosate across his cornfield in Auburn, Ill., in 2010. An increasing number of weeds have now evolved resistance to the chemical. Seth Perlman/AP hide caption

itoggle caption Seth Perlman/AP

Whether the error in Supreme Court Justice Antonin Scalia's recent dissent was originally his fault or a clerk's doesn't make it less cringeworthy. Alex Wong/Getty Images hide caption

itoggle caption Alex Wong/Getty Images