Researchers estimate that airlines can cut emissions in half by the year 2050.
The FBI is on the scene after the Spirit Airlines flight was recalled before takeoff at BWI airport.
Cabin crew union is demanding the retention of retirements benefits and pensions.
The British Airways flight was departing McCarran Airport and headed to London Gatwick.
Officials couldn't immediately confirm whether the fragments belonged to Malaysia Airlines Flight 370.
"What could go wrong? Surprisingly, not much," writes Mike Leary.
The agency is looking into whether some U.S. carriers purposefully fixed prices.
Carriers avoid the ticket tax by raising revenue through baggage charges, seat upgrades and flight changes.
FiveThirtyEight ranked airports and airlines based on their performance from May 2014 to April 2015.
The caller claimed the flights were carrying some form of chemical weapons, they said.
Seaplanes have returned with a 'stubborn German nerd' at the controls.
"Loss of control in flight, followed by controlled flight into terrain," writes Tom Farrier.
The move came as Yemen's own national carrier, Yemenia, confirmed it was suspending all operations.
Damage to a plane is consistent with small-arms fire, officials say.
Skiplagged.com promotes a travel practice that airlines are not fans of.
The airline called the passenger's behavior "unruly," but she says JetBlue's policy is "no mean tweets."
The jets were brought down not far from the crash site of flight MH17, say the Ukrainian military