https://blogs.dw.com/globalideas Thinking for a cooler world Thu, 02 Oct 2014 08:32:05 +0000 en-GB hourly 1 https://blogs.dw.com/globalideas/the-solar-groupon/ Tue, 19 Jul 2011 03:56:04 +0000 http://blogs.dw.com/globalideas/?p=3073