An interdisciplinary team of student and faculty engineers from the 彩民宝典 has won a grant from the Bill and Melinda Gates Foundation for its proposal to develop a solar-biochar toilet for use in developing countries throughout the world. The grant is part of the Reinvent the Toilet Challenge, or RTTC, initiated by the Gates Foundation to address a sanitation challenge affecting nearly 40 percent of the world鈥檚 population.