The demand for private jets in week of Davos is tending to be towards more expensive private jets.DAVOS: The Davos elite say they are more worried than ever about climate change.

But that isn't stopping them chartering private jets in record numbers.The convenience and comfort of flying privately rather than commercially appears to outweigh any concerns about outsized carbon footprint it involves, judging by a number-crunching exercise by company Air Charter Service (ACS).It forecast nearly 1,500 private jet flights over week of World Economic Forum (WEF) to airports near Davos in Swiss Alps.That would be up from more than 1,300 aircraft movements seen at last year's forum, despite climate change registering as top risk factor identified for global economy in a survey of WEF movers and shakers last week.In a blog post, website privatefly.com forecast an even higher number of private flight movements related to Davos this week, of around 2,000 in and out of local airports.And while most people reach Davos by car or train after alighting from airports such as Zurich, two to three hours' away, a select few CEOs and government leaders hire helicopters to save time.Demand for private jets in week of Davos far outstrips other events that also loom large on private aviation calendar, such as Super Bowl or Champions' League final, according to Andy Christie, private jets director at ACS."We have had bookings from as far as our operations in Hong Kong, India and US -- no other event has same global appeal," he said in a statementAnd trend is towards even more expensive, larger private jets such as Gulfstream GV and Bombardier's Global Express."This is at least in part due to some of long distances travelled, but also possibly due to business rivals not wanting to be seen to be outdone by one another," Christie said.WEF organisers insist they are making annual forum environmentally sustainable, offsetting carbon emissions generated by private aviation as much as possible through their own initiatives on ground."We encourage our partners from business and others to take that (offsetting measures) on," Dominique Waughray, head of Global Public Goods said."Most of private aircraft that come in are actually for government officials, because under Vienna convention most efficient and secure way of getting people to an event like that is via an aircraft," she said."So that is a sort of security brief, but we still offset them."(This story has not been edited by TheIndianSubcontinent staff and is auto-generated from a syndicated feed.)