Impact Travel Alliance | 2,460 followers on LinkedIn. What if you could change the world simply by changing the way you travel? | Impact Travel Alliance was the world's largest community for socially and eco-conscious travelers. The organization taught travelers how to explore in a way that has a positive impact on local communities and the environment. Impact Travel was an independent 501(c)3 nonprofit with a highly engaged and active global community with more than 25 local chapters in cities around the world.