As China deepens its commitment to renewable energy, its latest megaproject - the Medog Hydropower Dam - provides an interesting debate on the hidden costs associated with going green. Set to provide clean energy for hundreds of millions of people, but with potential human rights, environmental and political issues, is this new dam a step forward for renewable infrastructure, or a geopolitical catastrophe waiting to happen?

Eleanor delves into the historical significance of coal and its role in shaping the UK.