At a time when urban crime and homeless hungry kids roam the city streets as beggars, some enterprising people in urban cities in the U.S. are grafting fruit bearing branches onto park and sidewalk trees so that food can grow in the area. Many groups of guerilla gardeners roam urban streets in the west to reclaim public spaces for growing food and creating pollinator refuges. Going back to nature has also been advocated by some local lawmakers to solve complex urban problems with simple solutions like allowing ponds and catchments to exist in the city to solve floods. Guerilla gardeners want food to be available to everyone.