This chapter explores biochar's dual role in climate change adaptation and mitigation. Biochar, produced from the pyrolysis of organic biomass, is a promising solution for enhancing soil fertility, sequestering carbon, and improving agricultural productivity. The current chapter also highlights biochar's mechanisms in stabilizing soil carbon and reducing greenhouse gas emissions, alongside its benefits in enhancing agricultural resilience to climate impacts like extreme weather and soil degradation. Biochar presents a great deal of promise for mitigating and adapting to climate change, but there are a lot of obstacles to overcome. The inability to characterize biochar using standardized methodologies makes it difficult to compare and ensure uniform quality across research. The majority of research uses short-term studies, which makes current approaches inadequate for evaluating the quality and long-term effects of biochar. Practical applications are limited by high production costs, a lack of significant advancements in biochar additives, and economic obstacles. Risks to the environment and human health, such as possible contamination of the soil and water, need to be thoroughly investigated. It is necessary to conduct additional research since the potential of biochar in protecting the seashore and maintaining sand dunes is not well understood. To fully realize the benefits of biochar, long-term studies, standardized methodologies, and improved carbonization technologies are essential.