Eric’s Enlightenment for Wednesday, April 22, 2015

  1. Frances Woolley’s useful reading list on tax policy for Canadians with disabilities
  2. Jeff Rosenthal asked a seemingly simple yet subtle question about uncorrelated normal random variables.
  3. A great catalogue of colours with their names in R – very useful for data visualization!
  4. Paul Crutzen’s proposed scheme to inject sulfur dioxide into the stratosphere – this would create sulfate aerosols for deflecting sunlight to counteract global warming, but he carefully weighed the serious pros and cons of this risky scheme.
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Sulfur Dioxide, Sulfur Trioxide and Acid Rain: Pollution from Burning Coal

Introduction

It is well known that burning coal produces carbon dioxide, which contributes to the accumulation of greenhouse gases in the Earth’s atmosphere and, according to the Intergovernmental Panel on Climate Change, is a major source of anthropogenic global warming and climate change.  However, burning coal releases 2 other drastic but lesser known pollutants – sulfur dioxide and sulfur trioxide – which are responsible for numerous health problems and acid rain.

Coal_bituminous

Bituminous Coal – A low-grade coal with high sulfur content

Source: “Minerals and Materials Photo Gallery”,  U.S House Subcommittee on Energy and Natural Resources

via Wikimedia

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