These are some of the stories we’ve been following this week.

  • 512px-Ahmed_Abdul_Rahim_Al_Attar_Tower_Under_Construction_on_27_January_2007

    Construction of the Ahmed Abdul Rahim Al Attar Tower located along Sheikh Zayed Road in 2007. Imre Solt (GFDL or CC-BY-SA-3.0), via Wikimedia Commons

    An oil train derailed in Oregon last month, and now a groundwater monitoring station has picked up signs of contamination. A nearby town’s water wells were not contaminated because they are located uphill of the derailment.

  • Environmentalists are renewing their calls to shut down the Aliso Canyon natural gas storage facility after another leak was discovered earlier this month. A leak discovered last October forced thousands of residents of nearby Porter Ranch to be leave their homes for several months.