Volunteers plant trees in a backyard of a south Palo Alto home on Dec. 4, 2021 as part of Canopy’s planting event. Photo by Gennady Sheyner. In the early 1980s and 1990s, Palo Alto’s street trees were ...

Urban trees can lower local air temperatures by 8-12 degrees Celsius in Central European cities, and up to 12 degrees Celsius at pedestrian level through radiation blockage and transpiration. This isn ...

Blue Island was awarded a $150,000 grant to improve the city’s tree canopy, which will be used to prune and remove trees that pose a public safety risk during storms, officials said. The city, ...