[2013-01-31] Cyclone did not cause 2012 record low for Arctic sea ice + http://neven1.typepad.com/blog/2013/01/2012-record-not-due-to-gac-2012-.html + http://onlinelibrary.wiley.com/doi/10.1002/grl.50190/abstract + http://www.washington.edu/news/2013/01/31/cyclone-did-not-cause-2012-record-low-for-arctic-sea-ice/ + http://dotearth.blogs.nytimes.com/2013/01/31/study-finds-arctic-cyclone-had-insignificant-impact-on-2012-ice-retreat/ with 2012arctic_cyclonesarctic_sea_ice
[2013-02-01] U.S. Carbon Emissions Fall To The Lowest Level Since 1994 + http://www.bloomberg.com/news/2013-01-31/u-s-renewable-energy-capacity-doubled-from-2009-2012-bnef-says.html + http://www.guardian.co.uk/environment/2013/feb/01/us-carbon-emissions-lowest-levels + http://www.bcse.org/index.php?option=com_content&task=view&id=690&Itemid=81 + http://www.bcse.org/sustainableenergyfactbook.html + http://e360.yale.edu/digest/us_carbon_emissions_fall_to_their_lowest_level_since_1994/3757/ + http://e360.yale.edu/digest/us_carbon_emissions__fall_to_lowest_level_since_1994/3757/ with carbon_emissionsrenewable_energyusa