To keep the Earth’s average temperature within 1.5oC of warming above pre- industrial levels, the world must be close to carbon neutral by 2050. Hong Kong, like other regions, must develop a concrete plan that can transform the city into a net zero emissions economy and society. To progress towards a net zero emissions future, Hong Kong must begin planning and taking accelerated action now. It needs to adopt a significantly more aggressive decarbonisation target, with annual reductions of 6.6 per cent beginning immediately and continuing through 2050.