A team from Stanford University has developed a new cooling system that works without electricity by harnessing one of nature's fundamental processes.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/groundbreaking-cooling-system-works-without-electricity-could-drastically-reduce-energy-use
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/international-business-times
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy-efficiency
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/green-house-gases
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/science-and-technology