By fermentation, the yeast species Saccharomyces cerevisiae converts carbohydrates to carbon dioxide and alcohols â for thousands of years the carbon dioxide has been used in baking and the alcohol in alcoholic beverages.
In a memo last September, President Obama said the United States would admit up to 70,000 refugees to the United States during Fiscal Year 2015, as justified by humanitarian concerns or the national interest. The number breaks down as follows: Africa................................17,000.
There are at least 20 million environmental refugees worldwide, the group saysâmore than those displaced by war and political repression combined. More and more people live in more and more vulnerable circumstances, said Anthony Oliver-Smith, a University of Florida anthropologist who is a member of the UN group.