Global warming from a chilly scientist

A chilly scientist in Pittsburgh

“Global warming, my gluteus maximus,” Alaska Gov. Sarah Palin blasted on Facebook, alongside a picture of a snowy landscape taken in May, 2013. Although I am a scientist who understands and accepts the occurrence of global warming, the wearied look of my beaten down coat and the regularity of my water pipes freezing in April leaves such skepticism as no surprise. In five words, the politician captured a common perception of the much-discussed phenomenon of global warming.

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The Case Against Antibiotics in Soap: Part 2

Last time, we went through two reasons why antibiotics may not be necessary in hand soaps. First, there has not been very much study about how safe these antibiotics are, especially Triclosan. Because we don’t know for sure, the FDA wants antibiotic manufacturers to be certain that their soaps are safe. But the second argument went into reasons why the antibiotics may not be needed at all. Research from Columbia and the University of Michigan reviewed papers back to the 1960s and found that the best way to reduce the risk of infection is to wash your hands, but what kind of soap is used is much less important than the duration1. So the antibiotics may be unsafe, particularly to the environment, and they may not be necessary. Today, the final part of the argument will show how antibiotics in consumer hand soaps may, paradoxically, be detrimental to health. Continue reading

The Case Against Antibiotics in Soap: Part 1

Recently, I saw an article about how the FDA wants to remove antibiotics from hand soap1. To most people, this sounds silly. Antibiotics kill bacteria, and bacteria make you sick, so why should we get rid of this? In fact, reviewers from Rutgers read past papers in late 2011 and found that antibacterial soaps (soaps containing antibiotics) significantly reduce the amount of bacteria on a person’s hands2. As it turns out, the world of bacteria is a very active area of science, and we are learning more about how bacteria interact with us and each other every day. Recently, evidence has suggested a few problems with the most common antibacterial soaps. What are some of these problems, and why are they resulting in new FDA regulations?

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