Posted in reply to the post by Clancy:
You are right, but the journal Energy and Environment is the UK equivalent of The Journal of Energy and Environment, and since their names are almost identical, and they serve an identical purpose, you may understand the confusion. Both publications serve the oil and gas industries, they don't publish scientific, peer reviewed studies. This is from their home page;
Some recent papers in Energy and Environment
The politics of fuel pricing in Latin America and their implications for the environment
Jorge Rogat (Denmark)
Market diffusion of new renewable energy in Europe: explaining front-runner and laggard positions
Per-Ove Eikeland and Ingvild Sáéverud (Norway)
Voluntary agreements for energy efficiency: review and results of European experiences
Paolo Bertoldi & Silvia Rezessy (Italy, Hungary)
The economics of the Arctic National Wildlife Refuge Emily Schaeffer & Walter Block (USA)
Viewpoints and Technical Communications China's hunt for oil in Africa in perspective
Zhongxiang Zhang (USA)
The impact of energy policies on the development of renewable energies
Martin Gastal (Switzerland)
Problems with publishing scientific information on the web: how unusual were temperatures in Svalbard, Norway?
Willis Eschenbach (Alaska)
An economist looks at recent energy policy statements
John Gault (Switzerland)
https://www.multi-science.co.uk/ee.htm
And to answer your question "What is the significance of whether his survey of scientific papers was peer reviewed and how does it relate to the subject on hand?"
The significance is, you don't know how he came up with the results, and you have no way of checking them.