But the Irish airline is also the tenth highest emitter in the EU's Emission Trading System
From green Cathedrals to A-list climate spoofs, BusinessGreen brings you this week's green business headlines from around the world
Firm hit by EU's decision to suspend UK companies from accessing CO2 credits under emissions trading system until Brexit deal is ratified
As coal use drops off, aviation is coming to the fore as bloc's biggest emitter
Influential new report from Sandbag claims policies already in place to deliver 50 per cent cut in emissions by 2030, paving the way for increased ambition
New guidance warns firms should prepare for major changes to emissions trading, electricity trading, and nuclear safeguards if UK crashes out of EU next month
You'd have been forgiven for missing the green detail of yesterday's Budget speech - but buried in the Red Book was some measures sustainability executives should be abreast of
EU ETS carbon price breaks €20 per tonne mark, as demand increases ahead of looming market reforms
EU ETS price on course to hit €40 per tonne by 2023 says Carbon Tracker, but how high is too high?
Higher energy demand coupled with plant shut downs, low wind and hydro production has helped rally EU ETS prices to a seven-year high