Reuters: Despite the worst U.S. recession in decades, sales of organic and sustainable products have continued to grow, experts say, with shoppers willing to spend a few more dollars in a bid to become more green. U.S. supermarket sales of environmentally sustainable or “ethical” products — from energy-efficient light bulbs to organic produce — will rise about 8.7 percent in 2009 to nearly $38 billion, according to a recent study by Packaged Facts, a market research …