Mont Blanc ultramarathon trail kicks off amid growing environmental concern
The annual UTMB, the flagship race of the Ultra-Trail du Mont-Blanc week, kicked off on Friday with 2,500 participants. As the race continues to attract more runners each year, local residents are increasingly concerned about its environmental impact.
<p>The annual UTMB, the flagship race of the Ultra-Trail du Mont-Blanc week, kicked off on Friday with 2,500 participants. As the race continues to attract more runners each year, local residents are increasingly concerned about its environmental impact.</p>