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| Using alcohol and marijuana together places teenagers at greater risk of unsafe driving Posted: 28 Apr 2014 07:03 AM PDT Use of alcohol and marijuana together place teenagers at increased risk for unsafe driving, compared to use of either substance separately. This is the major finding of a new study in the May issue of the Journal of Studies on Alcohol and Drugs. The study authors, led by researchers in the University of Michigan, maintain that patterns of substance use need to be considered in driver education rather than a relatively exclusive concentration on the dangers of alcohol use. |
| New metric for comparing the greenhouse gases methane and carbon dioxide Posted: 28 Apr 2014 06:45 AM PDT In formulating policies to address greenhouse gas emissions, or evaluating the potential impact of different energy technologies on global climate change, one of the thorniest issues is how to account for the very distinctive characteristics of various different gases. |
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