Costa Rica has achieved a clean energy milestone by using 100 per cent renewable energy for a record 75 days in a row.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/costa-rica-goes-75-days-powering-itself-using-only-renewable-energy
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/independent-united-kingdom
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/renewable-energy
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/costa-rica
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hydroelectricity
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/electricity
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/geothermal-energy