14 Pages Posted: 30 May 2017
The scientific consensus on climate change's origins in human activities has begun to influence international law and corporate policies. Suitable for MBA and undergraduate students, this technical note is a compilation that replaces a three-part series of the same name (UVA-ENT-0036, -0037, and -0038) International concern over global climate change began in the late 20th century, when scientists saw a correlation among increasing atmospheric concentrations of certain gases, human activities emitting those gases, and an unusual increase in global ambient temperature readings. The scientific community was joined by international policy makers who had grown concerned about reports of climate change impacts ranging from melting polar icecaps to regional flooding, drought, and extreme-weather events. While a small number of scientists disagree, most researchers suggest that prudence requires action to reduce human contributions to atmospheric pollutants that cause the greenhouse effect.
Rev. Feb. 4, 2011
The thickness of the air, compared to the size of the Earth, is something like the thickness of a coat of shellac on a schoolroom globe. Many astronauts have reported seeing that delicate, thin, blue aura at the horizon of the daylit hemisphere and immediately, unbidden, began contemplating its fragility and vulnerability. They have reason to worry.
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Keywords: climate change IPCC sustainability environment
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