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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.
Besides ecological effects, overpopulation of deer causes economic effects due to browsing on crops, expensive fencing needed to combat this and protect new afforestation planting and coppice growth, and increasing numbers of road traffic incidents. [3] [45] [46] High populations cause stripping of the bark of trees, eventually destroying forests.
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]
The global population is expanding rapidly thanks to major advances in public health, but can the Earth sustain so many humans?
The term anthropogenic designates an effect or object resulting from human activity. The term was first used in the technical sense by Russian geologist Alexey Pavlov, and it was first used in English by British ecologist Arthur Tansley in reference to human influences on climax plant communities. [20]
Human population planning is the practice ... The head of the UN Millennium Project Jeffrey Sachs is also a strong proponent of decreasing the effects of overpopulation.
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Human populations, historically, were small, and methods of collection were limited to small quantities. With an exponential increase in human population , expanding markets and increasing demand, combined with improved access and techniques for capture, are causing the exploitation of many species beyond sustainable levels. [ 46 ]