Tackling socio-environmental crises such as climate change, biodiversity loss, and sustainability requires effective interdisciplinary and transdisciplinary working. To support this, ACCESS (Advancing Capacity for Climate and Environment Social Science) is facilitating various capacity building activities, to help environmental social scientists develop their collaborative working skills, learn from different perspectives, and expand their cross-sector networks. This report evaluates a one-day training workshop, focused on systems mapping for environmental challenges.