Tales of rain drops that remove the color from automobiles sound like science fiction, but unfortunately are not. The good news is the problem of acid rain (or more accurately acid deposition) can be curbed by simple steps of conservation. April 22 is Earth Day. So when you are finished browsing today's sites, turn off your computer, turn off the lights and go enjoy the daylight!
"Acid rain is rain, snow or fog that is polluted by acid in the atmosphere and damages the environment. Two common air pollutants acidify rain: sulphur dioxide (SO2) and nitrogen oxide (NOX). When these substances are released into the atmosphere, they can be carried over long distances by prevailing winds and return to earth as acidic rain, snow, fog or dust.." This official Canada Environment site is my pick of the day for the depth of its coverage and simple yet effective design. Don't miss the do-it-yourself experiments in the Kids' Corner.
"�Acid rain' is a broad term used to describe several ways that acids fall out of the atmosphere. A more precise term is acid deposition, which has two parts: wet and dry. Wet deposition refers to acidic rain, fog, and snow. Dry deposition refers to acidic gases and particles." In addition to the concise description of the problems caused by acid rain, the best clicks are the glossary, science experiments, learning activities and the Acid Rain Program Progress Report. This Adobe document (which requires the free Adobe reader) details the progress of the Acid Rain Program since it's enactment in 1990.
The following links are either new discoveries or sites that didn't make it into my newspaper column because of space constraints. Enjoy!
Acid Rain Collaborative ProjectGirl Scouts: Acid Rain |
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