sir alan duncan. you're watching wednesday in parliament, with me, alicia mccarthy.alicia. now back to prime minister's questions, where the snp's deputy westminster leader kirsty blackman called on the government to reverse "damaging policies" on energy and the environment. the call came a day after swedish teenage activist, greta thunberg, met uk politicians to urge them to do more to tackle climate change. in a speech, she criticised the uk for supporting new exploitation of fossil fuels and exaggerating cuts to carbon emissions. kirsty blackman took up some of those accusations with david lidington. climate change is the biggest crisis facing the world today. even the environment secretary has admitted that his government has failed to do enough. yesterday, he promised that the uk government would take action. mr speaker, this government has spent millions on nuclear power, cut support for renewable energy, and continue to pursue fracking. so does taking action include reversing these damaging policies? there is clearly more that needs to be done, and probably al