Climate change and cost: What are 'stranded assets'?

The idea of "stranded assets" has become a key part of the debate on climate change and global energy policy.

It relates to the fossil fuel discoveries of major energy companies, as well as the financial value that should be placed on them.

It is both an economic and an ethical question, which has divided energy analysts and environmental campaigners.

This video sets out to explain the basic concept of "stranded assets".

Video Journalist: Dougal Shaw

UCL study cited from team at University College London led by Christophe McGlade, published in Nature