Carbon footprints of the Telethon stars

But a MailOnline investigation has revealed the extent to which stars have contributed to the catastrophic weather phenomenons with their jet-setting lifestyles.

Justin Bieber is calculated to have travelled at least 136,000 miles in a plane over the last year, environmentalist DiCaprio is believed to have done more than 87,000 miles while fellow actor Clooney did 61,000 miles.