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Hunting has long been a vital human activity for survival, providing food, clothing, and tools. However, the history of hunting also includes episodes of overexploitation, particularly in the form of overhunting. The overkill hypothesis, which addresses the Quaternary extinction events, explains the relatively rapid extinction of megafauna ...
Mass extinctions are characterized by the loss of at least 75% of species within a geologically short period of time (i.e., less than 2 million years). [18] [51] The Holocene extinction is also known as the "sixth extinction", as it is possibly the sixth mass extinction event, after the Ordovician–Silurian extinction events, the Late Devonian extinction, the Permian–Triassic extinction ...
Herbicidal warfare is the use of substances primarily designed to destroy the plant-based ecosystem of an area. Although herbicidal warfare use chemical substances, its main purpose is to disrupt agricultural food production and/or to destroy plants which provide cover or concealment to the enemy, not to asphyxiate or poison humans and/or destroy human-made structures.
Simple logic dictates that more people will require more food. In fact, as the world's population increases dramatically, agricultural output will need to increase by at least 50%, over the next 30 years. [56] In the past, continually moving to new land and soils provided a boost in food production to meet the global food demand.
Even as animal domestication became relatively widespread and after the development of agriculture, hunting usually remained a significant contributor to the human food-supply. The supplementary meat and materials from hunting included protein , bone for implements, sinew for cordage , fur , feathers , rawhide and leather used in clothing.
Today, over 3.5 billion kilograms of synthetic pesticides are used for the world's agriculture in an over $45 billion industry. [17] Current lead agrichemical producers include Syngenta (ChemChina), Bayer Crop Science, BASF, Dow AgroSciences, FMC, ADAMA, Nufarm, Corteva, Sumitomo Chemical, UPL, and Huapont Life Sciences.
Buss purports that the hunting hypothesis explains the high level of human male parental investment in offspring as compared to primates. Meat is an economical and condensed food resource in that it can be brought home to feed the young, as it is not efficient to carry low-calorie food across great distances.
A significant part of the energy cost of industrial food production arises from the packaging and shipping of products to the increasingly urban consumer base. [6] The energy costs, pesticide use, and widespread erosion implicit in many forms of industrial food production have led to concerns about its long-term sustainability as a pattern of ...