"Carbon dioxide emissions" . "Greenhouse gas emissions#Relative CO2 emission from various fuels" . "world's greenhouse gases" . "increases in greenhouse gases" . "CO₂e emissions" . "carbon dioxide emissions" . "greenhouse gas emitters" . "climate" . "production of greenhouse gases" . "carbon emission intensive" . "that contributes global warming" . "Carbon emissions" . "Greenhouse Gas Emissions" . "carbon emission" . . "Greenhouse Gas (GHG) emissions" . "Greenhouse gas emissions" . . "global CO₂ emissions" . "GHG emissions" . "greenhouse gases" . "emissions of carbon dioxide" . "carbon dioxide produced by fossil fuel combustion" . "greenhouse gas pollution" . "negative climate effects" . . "carbon emissions" . "emissions" . "Greenhouse Gas emissions" . "climate emissions" . . "growth in annual emissions" . "annual carbon emissions (or carbon loss)" . . "greenhouse gases into the atmosphere" . "emissions of greenhouse gas" . "greenhouse emissions" . . "emits carbon dioxide" . . "emissions of greenhouses gases" . "Greenhouse emissions" . "addition of greenhouse gases" . . . "List of CO2 emitted per million Btu of energy from various fuels" . . "greenhouse gas (GHG) emissions" . "emissions of greenhouse gases" . "greenhouse gases was emitted" . . "greenhouse gas" . . . "emits more greenhouse gas" . . "Greenhouse gas emission" . "Emissions of greenhouse gases" . "Greenhouse gas (GHG) emissions" . "Emissions" . "Greenhouse gas emissions" . "emission of greenhouse gases" . "greenhouse gas concentrations" . "global warming pollution" . "CO\u2082 emissions" . "Greenhouse gas emissions#Buildings and construction" . "increase CO₂ levels" . "Greenhouse gas emissions" . "emitter of greenhouse gas" . "greenhouse gas emissions" . "building and construction" . . "UK greenhouse gas emissions" . "greenhouse gas emission" . "CO₂ emissions" . "carbon dioxide emission" . "CO2 emissions" . "increase in atmospheric concentrations" . "carbon dioxide" . "greenhouse gas emissions from vehicles" . "Greenhouse_gas_emissions" .