This document discusses the importance of land, specifically trees and forests, for climate solutions and public health. It provides examples of tree planting programs in 14 U.S. cities that improved health outcomes and reduced air pollution. The document also outlines Massachusetts' programs and resources to increase tree canopy cover, improve forest and soil health, encourage sustainable land use, and engage communities and colleges in climate-resilient land stewardship. Quantified data shows that Massachusetts' state forests currently absorb about 16% of the state's emissions through carbon sequestration in above-ground biomass and soils.