Sienna Miller has been forced to defend her green credentials after a newspaper highlighted the amount of flights she takes.
The actress was last year named one of the 10 most environmentally friendly celebrities, but has now been taken to task by London's Evening Standard.
he newspaper reports Miller flew from London to Los Angeles last week only to return to the UK three days later for a fashion show.
Darren Johnson, a member of the Green Party, says: "I think you have to look at the messages it sends out. It's great that high profile celebrities champion causes and (it) makes them more high profile, but if your lifestyle sends out a totally opposite message then it can do more harm than good."
But a spokeswoman for Miller tells the newspaper: "Obviously, due to the nature of Sienna's work, she is required to travel regularly. She tries to offset her carbon footprint wherever possible."