• Why big dams don’t work

    जुलाई 11, 2012

    Yesterday, Mike Muller argued that China’s investment in dams is good news for Africa. Here, Lori Pottinger writes that large dams are costly and destructive, but Chinese experience in renewables still has a lot to offer.

  • Racing to map Africa’s glaciers

    जुलाई 03, 2012

    A team of scientists and photographers aims to document Earth’s threatened ice fields, including the many tropical ones in Uganda and the Democratic Republic of Congo, before they disappear. John Vidal reports.