I thank the hon. Gentleman for his intervention, but in fact he illustrates the scale of the problem. Nuclear fusion requires significant investment in order to commercialise it, as he would agree. The level of investment that this Government are making in it is entirely inadequate to meet the challenge and in respect of the contribution fusion can make to our economic and climate future.
Labour is serious about achieving a net zero emissions economy before 2050. We are developing policies to dramatically decarbonise energy and insulate 4 million homes in our first term, as part of our green jobs revolution. We believe in the power of people, the power of leadership and the power of government to address what are frankly existential challenges. After eight years of austerity and counting, it is evident that the Tories have given up on this. This Budget shows the Tories giving up on the planet, too. They lack both ideas and the courage to do what is needed. They must step aside.