Monitoring stations in the Arctic detect record levels of carbon dioxide, higher than ever above 'safe' 350ppm mark
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/greenhouse-gas-levels-pass-symbolic-400ppm-co2-milestone
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/guardian-uk
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/green-house-gases
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/arctic
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-dioxide
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/global-warming
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fossil-fuels
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/coal
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/electricity
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/alaska
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/greenland
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/norway