9World Meteorological Organization. Greenhouse Gas Bulletin:The State of Greenhouse Gases in the Atmosphere Based on Global Observations through 2014[R]. http://www, wmo. int/pages/prog/arep/gaw/ghg/ GHGbulletin. html, 2015-11-09/2016-01-11.
10Y. Mulugetta, F. Urban. Deliberating on low carbon development [J].Energy Policy, 2010,38(12):7546-7549.