Concept:
The Gaia Hypothesis was proposed by chemist James Lovelock and co-developed by microbiologist Lynn Margulis in the 1970s. It is a cornerstone of "Deep Ecology" and modern environmental political thought.
Step 1: Definition of the Hypothesis.
The hypothesis suggests that living organisms and their inorganic surroundings (atmosphere, hydrosphere, and soil) evolve as a single, self-regulating system to maintain the conditions for life on Earth. It views the planet not as a rock with life on it, but as a "superorganism."
Step 2: The Mechanism of Homeostasis.
Much like a human body regulates its temperature, the Gaia system uses feedback loops to maintain global temperature, atmospheric content, and ocean salinity. This shifts the focus from "human-centered" (anthropocentric) politics to "earth-centered" (ecocentric) politics.
Step 3: Political Significance.
In Political Science, the Gaia hypothesis is used to support the idea that humans are merely one part of a larger, interconnected biological web. It challenges the Westphalian notion of sovereign borders by highlighting that ecological damage in one area affects the self-regulation of the entire planet.