This week’s report by the Intergovernmental Panel on Climate Change (IPCC) warns global warming is headed for dangerous levels unless greenhouse gas emissions halve this decade. This cannot be achieved without a huge effort from China, the world’s biggest emitter.

The IPCC says limiting global warming will require, among other measures, a substantial reduction in fossil fuel use and deploying alternative fuels such as hydrogen.

China is responsible for almost one-third of global emissions each year. It’s committed to becoming carbon neutral before 2060 – and producing green hydrogen is key to this plan.

Australia is also pouring millions of dollars into green hydrogen technology. But China’s new plan could throw cold water on Australia’s