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  2. Human overpopulation - Wikipedia

    en.wikipedia.org/wiki/Human_overpopulation

    Human overpopulation (or human population overshoot) is the idea that human populations may become too large to be sustained by their environment or resources in the long term. The topic is usually discussed in the context of world population , though it may concern individual nations, regions, and cities.

  3. Overshoot (population) - Wikipedia

    en.wikipedia.org/wiki/Overshoot_(population)

    The Global Footprint Network purports to be able to measure how much the human economy demands against what the Earth can renew. [13] [14] The Optimum Population Trust (now called Population Matters) has listed what they believe is the overshoot (overpopulation) of a number of countries, based on the above. [15]

  4. Human population planning - Wikipedia

    en.wikipedia.org/wiki/Human_population_planning

    Human population planning is the practice of managing the growth rate of a human population. The practice, traditionally referred to as population control, had historically been implemented mainly with the goal of increasing population growth, though from the 1950s to the 1980s, concerns about overpopulation and its effects on poverty, the ...

  5. List of environmental issues - Wikipedia

    en.wikipedia.org/wiki/List_of_environmental_issues

    Human population — Biocapacity • climate change • Carrying capacity • Exploitation • Industrialisation • I = PAT • Land degradation • Land reclamation • Optimum population • Overshoot (population) • Population density • Population dynamics • Population growth • Projections of population growth • Total fertility ...

  6. Environmental issues - Wikipedia

    en.wikipedia.org/wiki/Environmental_issues

    Environmental protection is the practice of protecting the natural environment on the individual, organizational or governmental levels, for the benefit of both the environment and humans. Environmentalism is a social and environmental movement that addresses environmental issues through advocacy, legislation education, and activism. [3]

  7. Overpopulation - Wikipedia

    en.wikipedia.org/wiki/Overpopulation

    Overpopulation or overabundance is a state in which the population of a species is larger than the carrying capacity of its environment.This may be caused by increased birth rates, lowered mortality rates, reduced predation or large scale migration, leading to an overabundant species and other animals in the ecosystem competing for food, space, and resources.

  8. Behavioral sink - Wikipedia

    en.wikipedia.org/wiki/Behavioral_sink

    Behavioral sink" is a term invented by ethologist John B. Calhoun to describe a collapse in behavior that can result from overpopulation. The term and concept derive from a series of over-population experiments Calhoun conducted on Norway rats between 1958 and 1962. [ 1 ]

  9. Ecological crisis - Wikipedia

    en.wikipedia.org/wiki/Ecological_crisis

    The cause of most of the biodiversity loss is, generally speaking, human activities that push the planetary boundaries too far. [ 18 ] [ 19 ] [ 20 ] These activities include habitat destruction [ 21 ] (for example deforestation ) and land use intensification (for example monoculture farming).