Carbon sequestration: Trees absorb carbon dioxide from the atmosphere and store it in their trunks, branches, and leaves. Converting crop and rangelands to forests would increase the amount of carbon sequestered in the soil and vegetation, offsetting some of the emissions from burning fossil fuels.
Biodiversity: Forests support a wide variety of plant and animal life. Converting crop and rangelands to forests would increase the amount of habitat available for wildlife, helping to preserve biodiversity.
Water quality: Forests help to filter and purify water, reducing the amount of sediment and nutrients that enter waterways. Converting crop and rangelands to forests would improve water quality, making it safer for drinking, swimming, and fishing.
Soil erosion: Trees help to hold soil in place, reducing the amount of erosion that occurs. Converting crop and rangelands to forests would reduce soil erosion, helping to preserve the productivity of the land.
Air pollution: Trees help to remove pollutants from the air, such as ozone, nitrogen dioxide, and particulate matter. Converting crop and rangelands to forests would reduce air pollution, improving public health.
In addition to these environmental benefits, converting crop and rangelands to forests could also provide economic benefits. For example, forests can provide timber, firewood, and other forest products that can be sold for profit. Forests can also attract tourists, generating revenue for local businesses.
Overall, the conversion of 25 percent or less crop and rangelands in the US to forests with native trees would have a number of positive benefits for the environment and the economy.