"The emerald ash borer, an invasive beetle that has destroyed millions of trees in North America since being accidentally introduced from Asia, has been identified in Massachusetts for the first time, state officials said on Wednesday."

"Environmentalists sued the Obama administration on Wednesday seeking federal safeguards for seals that rely on vanishing Arctic sea ice and accusing the government of dragging its feet in listing the marine mammals under the Endangered Species Act."

"After Edison submits a plan to restart one reactor at San Onofre, the Nuclear Regulatory Commission is expected to take months to review it."

"YORK, PA -- Roughly 50 workers at Peach Bottom Atomic Power Station were exposed to low levels of radiation early Tuesday after a discharge of contaminated steam."

"An increasingly warm climate is worsening the problem of harmful Great Lakes algae blooms by boosting the intensity of spring rains that wash phosphorus into the waters, a scientist said Wednesday during a conference for advocates and policymakers."

"The Portland City Council voted 5-0 during a raucous public meeting Wednesday morning to add fluoride to Portland's drinking water, ending the city's status as the only major U.S. city that hasn't approved fluoridation."

"The record loss of Arctic sea ice this summer will echo throughout the weather patterns affecting the U.S. and Europe this winter, climate scientists said on Wednesday, since added heat in the Arctic influences the jet stream and may make extreme weather and climate events more likely."

"People of color eat a lot of locally-caught fish for economic and cultural reasons. And yet they are the least likely to be warned because state efforts fail to reach minority and low-income populations."

"Searing droughts in the United States and Russia will deplete harvests of wheat, corn and soybeans, the U.S. government said on Wednesday, but global food supplies were not hurt as badly as many had feared."