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The Green Revolution, or the Third Agricultural Revolution, was a period of technology transfer initiatives that saw greatly increased crop yields. [ 1 ] [ 2 ] These changes in agriculture began in developed countries in the early 20th century and spread globally until the late 1980s. [ 3 ]
Modern industrial agriculture—the "Green Revolution"—was based on the development of synthetic fertilizers, herbicides and pesticides which had devastating consequences for rural wildlife, as documented by American marine biologist, naturalist and environmentalist Rachel Carson in Silent Spring (1962).
In 1788, American pioneers to the Northwest Territory established Marietta, Ohio as the first permanent American settlement in the Northwest Territory. [28] The Louisiana Purchase of 1803 doubled the size of the nation. It contained a few small European settlements and large numbers of Native Americans.
Agriculture can have negative effects on biodiversity as well. [5] Organic farming is a multifaceted sustainable agriculture set of practices that can have a lower impact on the environment at a small scale. However, in most cases organic farming results in lower yields in terms of production per unit area. [68]
Norman Ernest Borlaug (/ ˈ b ɔːr l ɔː ɡ /; March 25, 1914 – September 12, 2009) [2] was an American agronomist who led initiatives worldwide that contributed to the extensive increases in agricultural production termed the Green Revolution.
Grazing can have positive or negative effects on rangeland health, depending on management quality, [129] and grazing can have different effects on different soils [130] and different plant communities. [131] Grazing can sometimes reduce, and other times increase, biodiversity of grassland ecosystems.
According to the IPCC Sixth Assessment Report from 2022, there is high confidence that in and of itself, climate change to date has left primarily negative effects on both crop yields and quality of produce, although there has been some regional variation: [5]: 724 more negative effects have been observed for some crops in low-latitudes (maize ...
The military does not solely have negative effects on the environment. [294] There are several examples of militaries aiding in land management, conservation, and greening of an area. [295] Additionally, certain military technologies have proven extremely helpful for conservationists and environmental scientists. [296]