TreePeople is a nonprofit environmental organization based in Los Angeles that works to address urban environmental challenges through community education and projects that help recreate the healthy functions of a forest ecosystem in urban settings. Their goals include expanding Los Angeles' tree canopy to provide benefits like cooler temperatures and cleaner air, as well as implementing "forest-mimicking" technologies like permeable paving and rainwater capture systems where trees cannot be planted. TreePeople supports communities to plant and care for trees while also demonstrating sustainable solutions to issues like lack of green space, water shortages, and air pollution.