EarthBriefing: Do earthquakes threaten Iran's nuclear facilities? A magnitude 7.8 earthquake has rocked Iran, just a week after another major quake struck the country. 51¶¯Âþ explores the nuclear risks 51¶¯Âþ
EarthThe pall of Fukushima overshadows our energy future The global repercussions of the Fukushima fiasco could threaten our ability to mitigate climate change Opinion