"emissions" - key terms from Wikipedia

automobile emissions	control
biodiesel emissions
cadmium emissions
carbon dioxide emissions
carbon emissions
carbon emissions	trading
countries by carbon dioxide emissions
dioxide emissions
dioxin emissions
emissions
emissions	control
emissions	credits
emissions	fell
emissions	from deforestation and forest
emissions	of greenhouse gases
emissions	per
emissions	reduction
emissions	reductions
emissions	regulations
emissions	scenarios
emissions	standards
emissions	targets
emissions	than required
emissions	total
emissions	trading
emissions	trading scheme
engine emissions
federal emissions
ghg emissions
greenhouse emissions
greenhouse gas emissions
ii emissions
international emissions	trading
local emissions
mercury emissions
methane emissions
nocturnal emissions
particulate emissions
per capita emissions
radio emissions
reduce emissions
reducing emissions
reducing greenhouse gas emissions
special report on emissions	scenarios
tritium emissions
verified emissions
zero emissions