Ozone helps shield people, animals and crops from damaging ultraviolet rays from the sun. Much of the concern about the ozone layer has focused on Antarctica, where a seasonal hole, or thinning, has been seen for two decades, and the Arctic, where a hole was observed last year. But those regions have almost no population.
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Anyone who went to a large state university with a famous football team knows that there were often special courses given to the players. Many non-playing students tried to get into these classes, since they were rumored to be easier. Now a new study shows why: Head impacts experienced during contact sports such as football and hockey may worsen some college athletes’ ability to acquire new information.
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After the recent Colorado massacre, we ALL want to reduce violence, but we’re divided about how to do it. Sociologists think that "greening" vacant lots may be associated with reductions in certain gun crimes (and it’s certainly easier than trying to get gun laws passed!)
Results of a recent study show that residents living near greened vacant lots feel safer than those near non-greened sites. Additionally, incidents of police-reported crimes may be reduced after greening.
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Interesting video shot on low-light camera.
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