Science Notes Today March4

Mapping Human Vulnerability to Climate Change
Researchers already study how various species of plants and animals migrate in response to climate change. Now, Jason Samson, a PhD candidate in McGill University's Department of Natural Resource Sciences, has taken the innovative step of using the same analytic tools to measure the impact of climate change on human populations. Samson and fellow researchers combined climate change data with censuses covering close to 97 per-cent of the world's population in order to forecast potential changes in local populations for 2050. Samson's team found that if populations continue to increase at the expected rates, those who are likely to be the most vulnerable to climate change are the people living in low-latitude, hot regions of the world, places like central South America, the Arabian Peninsula and much of Africa. In these areas, a relatively small increase in temperature will have serious consequences on a region's ability to sustain a growing population."

The More Secure You Feel, the Less You Value Your Stuff
People who feel more secure in receiving love and acceptance from others place less monetary value on their possessions, according to new research from the University of New Hampshire.The research was conducted by Edward Lemay, assistant professor of psychology at UNH, and colleagues at Yale University. The research is published in the Journal of Experimental Social Psychology. Lemay and his colleagues found that people who had heightened feelings of interpersonal security -- a sense of being loved and accepted by others -- placed a lower monetary value on their possession than people who did not.

Light-to-Moderate Alcohol Consumption May Help Stave Off Dementia, Research Suggests
Experts agree that long-term alcohol abuse is detrimental to memory function and can cause neuro-degenerative disease. However, according to a study published in Age and Ageing by Oxford University Press, there is evidence that light-to-moderate alcohol consumption may decrease the risk of cognitive decline or dementia.