Companies have played a major role in creating the environmental challenges we face today, and we are at a more critical point than ever in terms of the need to address these harms. This joint briefing addresses two main challenges for the trilogue negotiations in order to allow for effective environmental and climate protection in the Corporate Sustainability Due Diligence Directive (CSDDD): 1. Listing environmental conventions does not provide adequate protection, and 2. tackling climate change is a critical part of environmental due diligence.