The Paris Agreement asks both rich and poor countries to take action to curb the rise in global temperatures that is melting glaciers, raising sea levels and shifting rainfall patterns. Last week, Moroccan Foreign Minister Salaheddine Mezouar said he expects to announce that countries accounting for over 55 percent of the world's greenhouse gas emissions have formally joined the treaty — the threshold needed to trigger the landmark agreement — when he presides over the 22nd U.N.