Proforestation
The great forests that have long existed on the Earth draw in huge amounts of carbon from the atmosphere. Proforestation is protecting the forests there still are, encouraging them to continue to heal and grow.
Composting
Composting is the act of collecting and storing plant matter whereby it can decay and be added to soil to improve its quality. When organic matter like plants and fungi decompose, their waste all becomes food in the forest. However, when this waste is buried in landfills from cities, organic waste becomes methane, a greenhouse gas. Composting is a solution for this issue of methane being released from the food and plant matter put in landfills.