A science-driven nonprofit, Spark Climate Solutions accelerates progress in emerging, high-impact climate fields. Spark’s current programs focus on unsolved super climate pollutant emissions. Super pollutants, including methane and nitrous oxide, cause more than half of current warming. Spark’s current programs work to grow the fields working on livestock enteric methane mitigation, methane removal, transformational agricultural nitrogen management, and warming-induced emissions science and monitoring. Spark takes a deeply collaborative field-building approach, doing a mixture of direct work in the field, regranting, and launching new initiatives in order to support the growth of talent, institutional capacity, and collective knowledge to set up each field for long-term success.