title: The deepening crisis.
authors.affiliation: Earth Institute at Columbia University, USA.
authors.forename: Jeffrey D
authors.initials: JD
authors.lastname: Sachs
mesh_terms: D044822:Biodiversity; D003247:Conservation of Natural Resources / Q000639:trends; D004777:Environment; D007391:International Cooperation; D011057:Politics; D014481:United States