noun
Gaia theory; Gaia hypothesis; Gaia principle
Refers to the scientific hypothesis that Earth's biosphere and physical components form a self-regulating system. Often discussed in environmental science and ecology.
See also: ガイア仮説 (ガイアかせつ)
ガイア理論は、地球を一つの生命体のように捉える考え方です。
The Gaia theory is a way of thinking that views the Earth as a single living organism.
ガイア仮説 is a near-synonym, often used interchangeably, but 理論 (theory) may imply a more developed framework than 仮説 (hypothesis).
From English 'Gaia theory', named after the Greek goddess Gaia, proposed by James Lovelock.