Related by context. Frequent words. (Click for all words.) 61 carbon credits 54 CERs 53 emission reductions 52 emission reduction 51 RGGI 51 greenhouse gas emission 51 emissions 49 Emissions 49 carbon emission 49 carbon emissions 48 carbon offsets 48 greenhouse gases 47 RECs 47 GHG 47 emission 46 greenhouse gas 46 greenhouse gas emissions 46 carbon dioxide emissions 45 mercury emissions 45 offsets 45 renewables 44 electric utilities 44 GHG emissions 44 Clean Development Mechanism 44 sulfur dioxide emissions 44 heat trapping gases 43 MWh 43 CO2 42 E.ON 42 ETS 42 CO2 emissions 42 polluters 41 carbon dioxide 41 coal fired 41 greenhouse gasses 41 coal 41 greenhouse emissions 40 fossil fuel 40 CER 40 GWh 40 baseload 40 fossil fuels 39 carbon 39 renewable energy 39 REDD 39 E.On 39 FERC 39 tailpipe emissions 39 RWE 38 mercury pollution 38 PJM 38 Vattenfall 38 allowances 38 Kyoto Protocol 38 Independent System Operator 38 AEP 38 carbon dioxide CO2 38 reduce carbon emissions 37 reducing carbon emissions 37 Energy Regulatory Commission 37 MTBE 37 natural gas 37 renewable energies 37 emitters 37 OTC derivatives 37 windfall profits 37 pollution 36 ERCOT 36 PSEG 36 TXU 36 NiSource 36 Cinergy 36 E.ON s 36 wind farms 36 electricity 36 pollute 36 Kyoto protocol 36 nitrogen oxide 36 CPRS 36 Endesa 36 electric cooperatives 35 kilowatt hour 35 Clean Air 35 kWh 35 thermal coal 35 carbon capture 35 PUCO 35 burning fossil fuels 35 sulfur dioxide 35 UNFCCC 35 Enel 35 kwh 35 carbon sequestration 35 Credits 35 Ofgem 35 EdF 34 renewable 34 nuclear 34 refiners 34 smart grid 34 Natural Gas