Cars are an essential part of life for many people, but new petrol and diesel cars will be banned from sale in 2030 to help reduce greenhouse gas emissions. Electric cars are selling fast, but are not without controversy.

Justin Rowlatt, Michelle Ackerley and Dr Tara Shine investigate if it will be possible to heat British homes with green alternatives to boilers and build an entirely low-carbon electricity network before the government's net zero target of 2050.

Justin Rowlatt, Michelle Ackerley and Fran Scott investigate flying abroad via greener options. They find out if the government's plans are realistic, what the alternatives are to flying and if the changes will make flights more expensive.