In terms of environmental policy, the quest to cut carbon emissions dramatically and to achieve net zero remains high on the political agenda, although the war in Ukraine – and specifically the issue of gas supplies – may weaken these commitments. In any event, the environmental performance of China and the US – responsible, between them, for around one half of global emissions – will be key. In Asia, where ca.85% of energy consumption is currently being met by fossil fuels – there are ca.4.6bn energy users – the carbon emissions impact of these two figures is self-evident.