Issue #50 of the Bank Street Occasional Paper Series, "Learning With Treescapes in Environmentally Endangered Times Learning with Treescapes in Environmentally Endangered Times," is intended to be hopeful. Articles in this issue contribute to the envisioning of new practices and to an architecture of knowledge to waymark a more sustainable route into the future. Trees are vital for the present and future health of the planet, its inhabitants, and ecosystems. They store carbon and breathe out oxygen. Their leaves filter dangerous pollutants. Their branches provide shade and a shelter for a myriad of other beings, allowing diverse species to thrive. They provide cooling, control erosion, and filter water. Articles in this issue include stories from teachers and their students about learning with trees, and descriptions of how engagements with trees can transform research and ways of thinking, feeling, and being. Across multiple pieces, authors reflect on how connecting with trees facilitates greater connection among humans and between humans and the more-than-human occupants of our planet.