open emissions trading program

open emission trading

open burning and open detonation (OBOD) (= open-pit)

military trading organization (Naafi, UK; post exchange, US)

carbon trading

open country / open ground

jam emissions (v)

trick emissions

en-route emissions charge

en-route emissions charge assessed by country overflown

reference emissions cycle

reference emissions landing and take-off cycle

action plan on aircraft engine emissions

Action Plan on Emissions

alternative emissions methodology

Alternative emissions methodology task group

average emissions per passenger

emissions certification

engine emissions certification standards

interim agreed emissions (IAE)

methodology for quantifying aviation emissions inventories

prediction of emissions at flight conditions

radiative forcing by anthropogenic emissions

study group on market-based options for emissions reduction

engine emissions

break-open

open arrest

open attack

open barrel sight

open boat

open column

open emplacement

open fire