in a des moines register interview fallon said, “we think it’s very important. we think this is a tool that will help mobilize people to understand the problem and to do more about it…this needs to become the defining issue of this century.” fallon was inspired in part by another cross-country march, the 1986 great peace march for global nuclear disarmament, for which he coordinated the iowa logistics. although this was a national campaign, it was intended to have an international audience and was desired to include participants from multiple nations, as climate change is a global phenomenon.