Like the Ponderosa Pine this tree stays green all year round however in this range we will specifically look at dark green and browns like the acorns. How does this tree help the environment? Coast live oaks absorb and store carbon dioxide and mature trees can store significant amounts of carbon over their long lifespans. They support a wide range of species and their acorns are a vital food source for animals such as deer, squirrels and jays. Coast live oak tree’s canopy and branches offer nesting and shelter. Furthermore, they help prevent soil erosion by stabilizing slopes and streambanks with their roots, fallen leaves also enrich the soil which helps with nutrient levels and microbial health. Additionally, the trees filter air pollutants and release oxygen, their broad canopy provides shade which reduces heat and helps to cool areas. Lastly, they are a keystone species in California’s oak woodlands helping with ecosystem balance and they thrive in drought-prone and fire-adapted landscapes.