Earnings from this tax for 2010/11 are estimated to be around INR 22.5 billion (USD 500 million). As India's pledge refers to articles in the United Nations Framework Convention on Climate Change (UNFCCC) related to the provision of financial resources and technology transfer from developed countries, it is unclear whether India regards this technology co-operation as a precondition for pursuing its reduction efforts. The pledge explicitly excludes emissions from agriculture, but it is also not clear whether the target refers to C02 or GHG emissions.