Related by context. Frequent words. (Click for all words.) 70 CO2 Emissions 70 Greenhouse Gas Emissions 69 Carbon Emissions 69 EPA Proposes 68 Greenhouse Gases 65 Ethanol Production 64 Emission Reduction 63 Reduce Greenhouse Gas 62 Emissions 61 Biodiesel Production 61 Carbon Dioxide 61 Farm Subsidies 61 Coal Fired Power 61 Climate Talks 61 Carbon Offsets 60 Toxic Chemical 60 Toxic Chemicals 60 Fight Global Warming 60 Fossil Fuels 59 Minimum Wage Increase 59 Greenhouse Gas 59 Hybrid Cars 58 Gas Mileage 58 Tax Rebates 58 Acid Rain 58 Budget Deficits 58 Prices Climb 58 Offsets 58 Reduce Emissions 58 Polluter 58 Trade Pact 58 Flame Retardants 58 Pollutant 57 Loan Guarantees 57 Emission Standards 57 Takes Effect 57 Cellulosic Ethanol 57 Tax Hikes 57 Carbon Offset 57 Challenges Remain 57 Tax Incentives 56 Emitters 56 Stimulus Spending 56 Panel Approves 56 Carbon Sequestration 56 Greenhouse Gas Reduction 56 Smoking Bans 56 Oil Spill Cleanup 55 Improve Efficiency 55 GHGs 55 Emission 55 Emissions Reduction 55 Cluster Bombs 55 Hydrogen Fuel 55 Polluting 55 Nuclear Plants 55 Price Hikes 55 Experts Urge 55 Idles 55 Baby Bottles 55 Fuel Costs 55 Million Gallons 54 Refrigerant 54 Governor Vetoes 54 Pollute 54 Global Warming 54 Fuel Consumption 54 Renewable Energy Projects 54 Fuel Efficiency 54 Fuel Efficient 54 GHG emission 54 Nuclear Reactors 54 Imperils 54 Senate Panel Approves 54 Budget Shortfall 54 Light Bulbs 54 Fuel Spill 54 Oil Spills 54 GHG 54 GHG emissions 54 emmissions 54 Fossil Fuel 54 Scaled Back 54 Tanning Beds 54 Heating Costs 54 Water Scarcity 54 Debate Heats Up 54 Help Reduce 54 Official Warns 54 Pollution 54 Auto Bailout 53 FEMA Trailers 53 Multi Billion Dollar 53 greenhouse gasses 53 Radioactive Waste 53 Tax Breaks 53 greenhouse emissions 53 Causes Concern 53 Wide Ranging 53 Carbon Credits 53 Drilling Moratorium