Green spaces such as parks and community gardens can combat the effects of climate change: Trees, grasses, and other vegetation clean carbon dioxide from the air and add nutrients to the soil, preventing runoff.
In cities, shaded areas and bodies of water in parks can help keep the air cool. And green spaces have been linked to a variety of health benefits, including better cardiovascular health, mental health, and opportunities for social contact. As a result, many American cities are developing new green spaces and improving upon old ones.
[Pictured: New York City Housing Authority gardens in Brooklyn.]