What can a few Colombian farmers do in the face of a major oil company's announcement that it plans to survey in their backyards? Given their government's reluctance to protect ordinary citizens against major interests, they decided to write to Pope Francis, who has turned <a href="http://www.worldcrunch.com/opinion-analysis/why-pope-francis-refused-to-stay-silent-on-climate-change/encyclical-climate-change-poverty-consumerism-saint-francis-pope-francis/c7s19073/" target="_blank">environmental protection</a> into a papal crusade.<br />