The report ”From Waste to Resource Productivity” by the UK Government Chief Scientific Advisor has been published in December 2017. The report proper is 44 pages long; the report “Evidence and case studies” is 220 pages long - both are worth reading.
The report has been published on-line: https://www.gov.uk/government/publications/from-waste-to-resource-productivity - a printed version is available from the Government Office for Science in London.
Stahel has co-authored a case study on the impact of circular computing with Conrad Mohr from A2C for the report.