The demand is made in an open letter following a public petition by the Ski Fossil Free campaign, which has collected over 23,000 signatures.
In the letter, the athletes, who come from 22 countries and a variety of sports, write that "The biggest threat to the Olympic dream is fossil fuels."
Among them is former slalom star André Myhrer.
"This is a topic I am passionate about; it is a topic I believe in and something that is more important than ever," Myhrer writes in a comment to TT.
The initiator of the campaign is the Swedish cross-country skier Björn Sandström.
