"Senator Barbara Boxer said on Tuesday she plans to investigate the explosion at a Texas fertilizer plant earlier this month that killed 15 people and injured scores more."

"The Nuclear Regulatory Commission (NRC) said on Tuesday it will increase oversight of Exelon Corp's 805-megawatt Three Mile Island nuclear power plant in Pennsylvania, to ensure that safety equipment is protected from flooding."

"Scientists say waste-treatment plants must follow subways and power stations in being protected against climate change."

"Louisiana will receive $340 million from BP in early Natural Resource Damage Assessment money for four projects to restore barrier islands and to finance two coastal science centers, Gov. Bobby Jindal announced Tuesday in a news conference in Jean Lafitte. The money comes from $1 billion that BP set aside in 2011 to build early projects to compensate for damages to natural resources resulting from the three-month flow of oil resulting from the blowout of BP's Macondo well in April 2010."

"More than 5,000 products, including clothing, toys and bedding, contain toxic chemicals that could be dangerous for children’s health, yet stores still stock them and consumers know little about their content, an advocacy group reported this week."

"BP made a record pre-tax profit in the first quarter of double its $9bn for the same period in 2012, the company announced on Tuesday, as a Norwegian regulator rebuked the company for a 2012 oil spill in the North Sea."

"Environmental groups on Monday announced a new ad campaign that highlights ExxonMobil's massive oil spill in Arkansas last month. The ads will be concentrated in the Washington, D.C., Metro's Foggy Bottom station, which is used by many State Department employees commuting to work, as the agency considers whether to approve the construction of the Keystone XL pipeline."

"CONWAY, SC -- Pollution from a pair of coal ash ponds at Santee Cooper’s retired Grainger electric generating plant here has sparked another lawsuit – this one filed by The Southern Environmental Law Center, which alleges the state-owned utility is violating the federal Clean Water Act."

"The latest round of international climate change talks commenced [Monday] with the now perennial warning about the need for greater urgency from governments as they battle to curb global greenhouse gas emissions."