Why has pop-star Madonna angered environment activists?Dec 23(AZINS) Queen of pop Madonna has angered environmental activists after leaving a carbon footprint of nearly three tonnes by opting to travel 120 miles from Birmingham to London in her private jet. The 57-year-old star, who is a Greenpeace activist, travelled after her concert in her own jet, despite the fact driving would have only taken approximately 45 minutes longer, reported Female First.

The 'Hung Up' singer, whose 2007 song 'Hey You' highlighted global warming, opted to take her 12 seater private jet, resulting in an estimated travel time of one hour and 25 minutes when including travel to and from the airports.

It is estimated Madonna's journey would have contributed 2.907 tonnes of carbon emissions while a stretch limo would have produced just 0.081. Staff at Birmingham airport was reportedly 'stunned' to see Madonna board the plane for the 10,000 pound 25-minute flight last week.