Fly Greens means less flights

I got read this interesting article on today saying about "flying green" to conserve the environment. And I feel it is better than the idea which the Australian Airlines (Qunatas or Jetstar) suggested. That is for every flight one tree will be planted.I think as that Author Ms Marianne Maes said, we should cut down on unnecessary flights. Although globalisation makes it easy and cheap for people to fly around and access to even the most ulu place in the world, we also have technology to let people do video conferencing or discuss matters online to people in USA, Japan, UK, China and other place which are far from Singapore. It is quite a waste spending $500-$4000 (for first class seats) to fly to China, India or USA for some boring conference or business meetings overseas, these videos can be webcasted online and if this conference is precious or restricted to certain group of people, you can make people sign up for watching and pay a certain amount of money befor they can watch. MSN and Yahoo Messenger are also great tools and we can hold video conferencing there also. Back to the environmental part. It is know to many engineers and environmentalist that airplanes are the most inefficient vehicles around. It burns about 12 liters of fuel per kilometer and burns about 36000 gallons for a 10 hour flight. Effieciency per passenger as follows, a bus has an efficicency of 330 miles per gallon but the airplane has an efficiency of 75 miles per gallon which is on par with a average sized car. So it is an good option to fly around for some boring meetings overseas which only lasts for two days compared to 1 week when you travel for a holiday? The impact on the environment by the carbon oxides, nitrogen oxides and sulphur oxides produced by the airplanes cannot be ignored for the millions of unnecessay flights a year... Although sometimes it may mean the lost of a client who want the presenter to see him face to face.