Their findings appear in the journal Indoor Air.

BBC: Image of a smoke filled room

"It's a pay by weight system and it's here to stay, " Samoa Air Chief Executive Chris Langton told The Wall Street Journal Wednesday.

WSJ: Weigh More, Pay More on Samoa Air

The world sent 38.2 billion tons of carbon dioxide into the air in 2011, according international calculations published in a scientific journal in December.

NPR: Experts: CO2 Record Illustrates 'Scary' Trend

One of the few other lifestyle networks on the air at the time was Food Network, owned by the Providence Journal and a consortium of cable operators.

FORBES: Why There's No 'Cooking With Honey Boo Boo' On Food Network

"Some officials said the U.S. could also have sent aircraft to the scene as a 'show of force' to scare off the attackers, " the Journal reported, noting that there's a U.S. air base just 450 miles away in Sicily.

WSJ: Stephens: Benghazi Was Obama's 3 a.m. Call

"Although these programs have an air of goodness, " he wrote in the email reviewed by The Wall Street Journal, "Google is in fact using this program to develop a grass-tops network" of small businesses they can "activate to their defense" if the FTC tries to bring a case.

WSJ: Behind Google's Antitrust Escape

Former McCain consultant Mike Murphy and conservative Wall Street Journal columnist Peggy Noonan, were caught on live mikes, but off the air, talking to NBC political director Chuck Todd.

NPR: How Best To Charm GOP? Palin Bashes Press