Resource scarcity propounded by Locke and, later, Thomas Malthus (1766-1834) referred to “four dimensions of planetary danger.”
“war system, population pressure, resource scarcities, and environmental overload.”
“International society is, of course, an extreme example of war system. Conflicts abound. Vital interests are constantly at stake. Inequalities of resources and power create incentives to acquire what a neighboring state possesses.” Richard Folk (1798).