Environmental security examines threats posed by environmental events and trends to individuals, communities or nations. It may focus on the impact of human conflict and international relations on the environment, or on how environmental problems cross state borders.
The Millennium Project assessed definitions of environmental security and created a synthesis definition:
Environmental security is environmental viability for life support, with three sub-elements:
• preventing or repairing military damage to the environment,
• preventing or responding to environmentally caused conflicts, and
• protecting the environment due to its inherent moral value.
It considers the abilities of individuals, communities or nations to cope with environmental risks, changes or conflicts, or limited natural resources. For example, climate change can be viewed a threat to environmental security. Human activity impacts CO2 emissions, impacting regional and global climatic and environmental changes and thus changes in agricultural output. This can lead to food shortages which will then cause political debate, ethnic tension, and civil unrest.
Environmental security is an important concept in two fields: international relations and international development.
