Scientists make plans to extract millions of tons of carbon dioxide from the air each day.

It's up, up and away for air travelers: Fares are up, late flights are up and more passengers are being bumped away from boarding gates. All these problems are making travelers grumpy, an annual survey of airline quality says.

American Airlines and Delta Air Lines canceled dozens of flights Thursday as they continue their inspections of wiring bundles on some of their planes.

American Airlines canceled about 200 flights, less than 10 percent of the nation’s biggest airline’s scheduled service, on Wednesday so its crews can inspect some wire bundles aboard its MD-80 aircraft.

Delta Air Lines said Tuesday it will offer voluntary severance payouts to roughly 30,000 employees — more than half its work force — and cut domestic capacity by an extra 5 percent this year as part of an overhaul of its business plan to deal with soaring fuel prices.