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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 ]
Download as PDF; Printable version; In other projects ... Pages in category "20th-century revolutions" ... 5 October 1910 revolution; 1911 Revolution;
Social commentary is the act of using rhetorical means to provide commentary on social, cultural, political, or economic issues in a society. This is often done with the idea of implementing or promoting change by informing the general populace about a given problem and appealing to people's sense of justice.
A chemical weapon agent (CWA), or chemical warfare agent, is a chemical substance whose toxic properties are meant to kill, injure or incapacitate human beings.About 70 different chemicals have been used or stockpiled as chemical weapon agents during the 20th century, although the Organisation for the Prohibition of Chemical Weapons (OPCW) has an online database listing 35,942 chemicals which ...
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.
Better dead than Red – anti-Communist slogan; Black is beautiful – political slogan of a cultural movement that began in the 1960s by African Americans; Black Lives Matter – decentralized social movement that began in 2013 following the acquittal of George Zimmerman in the shooting death of African American teen Trayvon Martin; popularized in the United States following 2014 protests in ...
A plethora of new concepts to help implement and measure sustainability are becoming more widely accepted including the car-free movement, smart growth (more sustainable urban environments), life cycle assessment (the cradle to cradle analysis of resource use and environmental impact over the life cycle of a product or process), ecological ...
McNeill focuses on environmental history, a field in which he has been recognized as a pioneer. [1] In 2000, he published his best-known book, Something New Under the Sun: An Environmental History of the Twentieth-Century World, which argues that human activity during the 20th century led to environmental change on an unprecedented scale.