natural cycles
Recurring environmental processes
Natural cycles are recurring patterns in nature that repeat over predictable intervals.
The term encompasses phenomena like seasons, tides, circadian rhythms, and menstrual periods.
In environmental contexts, it often refers to processes like the water cycle or carbon cycle.
The phrase natural cycles sometimes appears in climate skepticism as an alternative explanation for global warming: They say it's just natural cycles.
- circadian rhythmsInternal daily biological cycles
- day and nightBoth light and darkness
- lunar phasesMoon's cyclical appearance changes
- Milankovitch cyclesOrbital shifts affecting climate
- food chainsSequential feeding relationships
decomposition · life and death · solstices · tidal patterns · ebb and flow · reproductive cycles · ecological balance · migration patterns · annual rings · ice ages · metamorphosis · salmon runs · breeding season · sedimentation · planetary orbits · waning · moon · boom and bust
- Fertility Awarenessfertility awareness, rhythm method, ovulation, fertile window, cervical mucus
- seasonsautumn, summer, winter, spring, fall
- life cyclesbirth, death, growth, metamorphosis, reproduction
- Biodynamicscow horns, preparations, cow horn, life forces, stirring
natural cyclescalendar systems
Methods for organizing time
work schedules · work shifts · production schedules · business cycles · planned obsolescence
natural cyclesrandom events
Occurrences lacking any cause
noise · entropy · disorder · linear progression · randomness
natural cyclesextinction events
Catastrophes eliminating many species
dead ends · linear progression · cataclysms · discontinuities · finality