In the 1990s and the 2000s, Thailand and India both applied a lower tax rate on unleaded fuels, rather than increasing taxes on leaded fuels, to (successfully) phase out leaded fuel (Cottrell et al., In Viet Nam, environmental tax revenues increased between 2000-2015 and in China, too, revenues increased between 2000-2014, and further changes are planned which are expected to perpetuate this trend. In Thailand, new measures to reduce GHG emissions in the transport sector were introduced in 2015, including a new system of vehicle registration taxes based on carbon dioxide emissions, expected to raise THB 10 billion, as well as a new system of transport fuel taxation based on carbon emissions and other measures to deal with waste, water pollution and transport.125 The World Bank's Partnership for Market Readiness programme reflects a broad interest in the region for carbon pricing schemes of one sort or another.