Oh great, now humanity has done it. We aren't just jerks, but we've gone and messed up the planet; environmental pollution, wars, negative karmic vibes, etc. Or our development has become a Game Breaker in the whole "Survival of the Fittest" thing; so humans are now alien to the planet that birthed us. (This also suggests that every other living species exists in some kind of Hive Mind state, so everything they do for survival follows "the rules.") We can divide this trope threefold: Examples of Gaia's Vengeance include: