The purpose of this proposal is to develop a methodology for tracking such funding. The Expert Group set up by UNEP has suggested a two-pronged approach: Level 1. Use globally available data to create a proxy of funding flowing to developing countries for environmentally sound technologies, or of trade in environmentally sound technologies Level 2. Collect national data on investment in environmentally sound technologies. In addition to the current indicator wording, which focuses on funding for developing countries, the methodology stresses the importance of including a second indicator to track the total uptake of ESTs globally.