redOrbit: Airline executives said on Tuesday they plan to cut the number of flights they operate in line with a drop in both cargo and passenger demand, effectively reducing their carbon emissions by nearly 8 percent this year, Reuters reported. The world financial crisis has taken the heat off the airline industry, which was once seen as a driving force behind global warming. The International Air Transport Association (IATA) said about 6 percent of the forecast carbon cut will come as …