"The environment-conflict nexus is a subset of “environmental security” — a field of inquiry that seeks to determine whether or not traditional notions of security (which emphasize countering military threats with military power) should be adapted to include threats posed by population growth and diminishing quantity and quality of environmental goods and services."

Daniel Schwartz and
Ashbindu Singh, Environmental Conditions, Resources, and Conflicts: An Introductory Overview and Data Collection, UNEP, 1996.