Released on April 17, the report also revealed that 39 percent of travellers were able to confirm they often or always manage to do so.
However, 48 percent indicated they never, rarely or only sometimes manage to travel sustainably, suggesting that while promising strides are being made for a greener future, there is still plenty of room to turn intentions into action.
The research also indicated a lack of information and a lack of credible certification posed a significant obstacle to sustainable travel (32 percent), particularly in India, China and Japan where travellers cited this as even more of a barrier than extra cost.
The report suggested such credibility could be achieved through certification by Global Sustainable Tourism Council (GSTC) accredited certification bodies.
GSTC provide guiding principles and minimum requirements for tourism businesses and destinations to protect and sustain natural and cultural resources.