 The use of biochar in agricultural soils as a climate change mitigation strategy may have unintended consequences, such as changes in surface albedo that could impact the climate. A study analyzing 12 years of Modi's derived albedo data found that differences in soil color induced by biochar application can lead to local instantaneous radiative forcing of up to 4.7 WM2 during periods of high solar irradiance, potentially reducing the mitigation potential by up to 30%. The study highlights the importance of considering crop phenology and management when assessing biochar's environmental impact. This article was authored by E. Bozzi, El Genizo, Peter Scono, and others.