AceShowbiz - Harrison Ford has been blasted by environmental activists for making "unnecessary" trips by air - following revelations he once made a jet journey to buy a cheeseburger. The "Indiana Jones" star began flying when he was 52 and after gaining his license he went on to purchase several aircraft, which he keeps at Santa Monica Airport in California.

He recently revealed in an interview the extent of his love for piloting, telling Britain's Live magazine, "Learning to fly was a work of art. I'm so passionate about flying I often fly up the coast for a cheeseburger. Flying is like good music; it elevates the spirit and it's an exhilarating freedom."

But the 67-year-old has come under fire from experts at Carbonfootprint.com over the comments, who are outraged he would make an airplane journey for such an "unnecessary" trip. And Dr. Wendy Buckley, director of the website, has called on Ford to set an environmental example and cut back on his flying.

She tells WENN, "Flying is a huge source of carbon emissions and making unnecessary journeys by plane can no longer be seen as responsible to our environment. Stars like Harrison Ford need to embrace the huge opportunity to lead by example in the battle against climate change - reduce their overall lifestyle carbon footprint and carbon offset those unavoidable emissions."