This Friday – March 4 – is World Engineering Day for Sustainable Development, a United Nations’ international day for celebrating engineers and engineering. It’s a day to recognize the critical role of engineers in achieving the UN Sustainable Development Goals (SDGs) to ensure that everyone has access to clean water, sanitation, reliable energy, and other basic human needs. In honor of World Engineering Day for Sustainable Development, we’d like to highlight the accomplishments of iGEM teams in engineering biological solutions towards the UN’s Sustainable Development Goals.