Space for growth in Detroit  Plants growing in greenhouse Food
is now being grown in the heart of the city  It is as if the
buildings and streets of a whole city just need to bunch up a
little.  Detroit's thousands of empty blocks and abandoned
buildings make it a place where pockets of life and commerce are
separated by eerie, desolate gaps.  If those gaps could only be
filled, the city might not seem like America's emblem of
industrial collapse, or an accidental experiment in how swiftly
an affluent metropolis can be destroyed without war or natural
disaster.  Fortunately, there are an increasing number of
businesses, big and small, determined to fill in some of
Detroit's gaps, revive its economy and reverse the experiment.
Growing optimism  One of them is the supermarket chain, Whole
Foods Market.  Not only is it pressing ahead with plans to build
a store in downtown Detroit, it is also involved in the efforts
to redevelop the city's historic wholesale food centre, Eastern
Market.  At a groundbreaking cer