What is a Nature Based CDR?

Nature-based CDR (carbon dioxide removal) is a way of taking CO2 out of the atmosphere and sequestering it by using natural processes and ecosystems. Nature-based CDR helps mitigate climate change by enhancing the capacity of plants, soils, and wetlands, to store carbon for long periods. 

Forestation is one of the most wildly recognised methods used for nature-based CDR. Reforestation is the process of planting or restoring forests as trees naturally capture CO2 during their natural growth. Forests naturally act as carbon sinks, absorbing carbon dioxide through photosynthesis and storing it in their biomass and soils. This method utilises the natural growth process of trees and captures and sequesters carbon dioxide. 

Another common method is the creation of biochar. Converting biomass into charcoal and applying it to soil can increase the soil’s properties and store carbon for a long period of time. Biochar can also be used to improve soil properties such as water retention, nutrient availability, and microbial activity. 

Despite the benefits of nature-based CDR methods, major challenges still persist. Land use competition is a significant concern as these approaches may require significant land areas, potentially conflicting with other land uses. Ensuring the permanence of carbon storage and developing reliable verification methods are crucial to accurately quantify the carbon sequestered. Moreover, establishing effective governance frameworks is essential to ensure the equitable distribution of benefits and sustainable implementation of nature-based CDR projects.