Tiny Forests
In a few cities around the world, planners have started creating “tiny forests”: dense patches of native trees and shrubs planted in spaces about the size of a tennis court. Because the plants are packed closely, they grow fast, creating shade, habitat and a spongy layer of soil that soaks up rainwater.
Supporters point out that these forests are cheap compared with large parks and can fit on vacant lots or school grounds. Studies of early projects report cooler temperatures nearby and more birds and insects within a few years. Children who help plant them often develop a stronger sense of ownership over their neighbourhoods.
Still, the evidence is young. Most tiny forests have existed for less than a decade, and long-term results are unknown. Critics add that planting a few small patches should not replace protecting the older forests and wetlands that already store enormous amounts of carbon. The strongest approach, many experts suggest, is to treat tiny forests as one tool among many.