An again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong who works for British Airways (BA) has told again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong about the company creating more CO2. The unnamed person is a again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong - someone who tells the truth about company again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong . The whistleblower said BA and many other airlines use "fuel-tankering" to save again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong . However, fuel-tankering is very bad for the again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong . Scientists say it adds to global warming. Fuel-tankering is when airplanes store extra again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong to get to their destination and back. This means the again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong saves money by paying for all the fuel in its again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong country instead of buying more expensive fuel at its destination. Scientists say fuel-tankering puts as much CO2 in the air each year as a large again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong . A again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong about British Airways and fuel-tankering was shown on the BBC this again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong . In the documentary, the CEO of BA promised to look again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong at how it carries fuel. He said the airline uses the fuel-tankering method and said it was "maybe the again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong thing to do". The money saved by fuel-tankering for again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong flight is very small, but there is a big again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong to the environment. A again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong flight from London to Italy had three tons of again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong fuel. The airline saved just $50 on the flight but an extra 600kg of CO2 was put into the again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong . Greenpeace said this was a "classic example of a company putting profit before planet". It said: "They'll happily pour extra fuel on the fire for a small boost to their again airline atmosphere cost documentary each employee environment extra fuel home money newspapers profit recent secrets town week whistleblower wrong margin."