Through its relationship with the Equator banks and sharing of experience with international organizations like the World Business Council for Sustainable Development (WBCSD), The World Economic Forum (WEF), Project Catalyst, the Carbon Disclosure Project (CDP) and Combat Climate Change (3C) among many others, IFC provides an important link between climate change-related business practices and evolving best practices like carbon disclosure in the developed and developing world. IFC also works in partnerships with donors partners like the Global Environment Facility, Australia, Austria, Bavaria, Canada, Denmark, Finland, Iceland, Ireland, Italy, Japan, Luxembourg, the Netherlands, New Zealand, Norway, Saxony, South Africa, Spain, Sweden, Switzerland, the Trust Fund for Environmentally and Socially Sustainable Development, the United Kingdom, and the United States.