Synopsis
Professor Iain Stewart explains the natural process in which over millions of years oil is formed.
Further Information
Similar broadcast resources
Climate refugees | Black Black Oil
Hundreds of millions of people are expected to migrate from their countries by 2050 due to rising sea levels.
Black Black Oil
North Sea oil has been an invisible machine at the core of the UK. It now faces an uncertain future as activists and investors demand change. Is the era of North Sea oil over?