Tag Archives: risk assessment

What on Earth are global tipping points?

Impact: Climate Change    June 13, 2012
First a bit of framing: It’s a pity, but two of the things human beings do very poorly are calculate future risk and take seriously anything that isn’t happening right now. That means that bad things could happen to us a thousand years from now, or in even a few decades, but they don’t seem [...]
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New study: Chemical mixture toxicity

Impact: Pollution    April 1, 2010
The situation is simple to describe: Almost all toxicity testing of pollutants is done on a chemical-by-chemical basis. Almost none of the testing involves multiple pollutants in combination (a chemical cocktail, a suite of pollutants, a toxic mix). Chemicals thrown together have a tendency to interact, producing new chemicals. This is particularly true when the [...]
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