Editor's Note : This is the 16th installment of an occasional series on water scarcity issues around the world. Colombia has made great strides in advancing peace talks with the Revolutionary Armed Forces of Colombia (FARC), improving the prospect of peace with the guerrilla movement and finally settling the country's longtime security threat . But another crisis of sorts is seeping through the country, based this time on the vulnerability of a precious resource: water. With nearly 50,000 cubic meters of water available per person each year, Colombia is technically one of the most water-rich countries in the world. But pollution, inadequate infrastructure, unequal distribution and extreme variability in annual rainfall leave an otherwise abundant resource susceptible to water stress. A drought, influenced by the El Nino weather pattern , has only exacerbated the situation.