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Detritivores like this dung beetle help to turn animal wastes into organic material that can be reused by primary producers. Nutrient cycling is the movement of nutrients through an ecosystem by biotic and abiotic processes. [26] The ocean is a vast storage pool for these nutrients, such as carbon, nitrogen and phosphorus.
Human composting is emerging as an end-of-life alternative that is friendlier to the climate and the Earth — it is far less carbon-intensive than cremation and doesn’t use chemicals involved ...
Zero waste can even be applied to the waste of human potential by enforced poverty and the denial of educational opportunity. It encompasses redesign for reduced energy wasting in industry or transportation and the wasting of the earth's rainforests. It is a general principle of designing for the efficient use of all resources, however defined.
In turn, animals provide much of the meat eaten by the human population, whether farmed or hunted, and until the arrival of mechanised transport, terrestrial mammals provided a large part of the power used for work and transport. A variety of living things serve as models in biological research, such as in genetics, and in drug testing.
The Earth's life-support systems are facing greater risks and uncertainties than ever before, with most major safety limits already crossed as a result of planet-wide human interventions ...
By contrast, human composting, like natural burial, is a natural process and contributes ecological value by preserving the body's nutrient material. [6] Some have argued that "natural organic reduction respects the human body and spirit, supports rather than sullies the earth, and works with nature rather than against it." [7]