Some sectors are easier to decarbonise than others. Given the fall in prices of renewables, for example, electricity is easier to decarbonise than aviation, since no-one has yet invented a low carbon means to fly passengers at scale. But the recent spike in UK electricity prices provides a timely reminder that there will be bumps on the path to decarbonise, even in the UK energy sector where a significant and growing share of electricity generated comes from renewable sources.

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