The world is in the middle of the biggest economic transition since the Industrial Revolution. The hegemony of fossil fuels is being challenged as the price of renewables comes down. But there is still a long way to go. Global greenhouse gas emissions must be halved by 2030 to have any hope of reaching net-zero by 2050. From a solar testing station run by the Qatar Environment and Energy Institute, earthrise travels to Orkney in the UK where scientists are developing one of clean energy’s holy grails - green hydrogen. In Norway, we visit a carbon-neutral data centre cooled by hydropower. And we speak to Christiana Figueres, the co-founder of Global Optimism and former UN climate chief. With reports by Cassie Farrell in the UK and Inspire Films in Norway, this programme explores the green society that could be ours.
