The OPT Journal is published twice a year and is available to members on request. It is edited by OPT Research Co-ordinator Andrew Ferguson and contains academic and technical articles by OPT experts and other contributors. You can download complete versions of past editions of the OPT Journal using the links provided below.

October 2008

• Introduction
• Clive Ponting’s A Green History of the World, Part 6, by Martin Desvaux
• Photovoltaics, Batteries, Tractors, Horses, and Biofuels, by Andrew Ferguson
• Food Aid, by Walter Youngquist
• Biofuels, Solar and Wind As Renewable Energy Systems: Benefits And Risks, David Pimentel (Editor)
• Critical Comments on Nature’s “Electricity Without Carbon”, by Andrew Ferguson
• Growth Rate Plots: An Introduction to the Concept, by Andrew Ferguson
• Rutledge’s Hypothesis, by Andrew Ferguson

April 2008

• Introduction
• Doctor William Stanton’s Battle with the Media, compiled by Andrew Ferguson
• Other Battles with the Media, compiled by Andrew Ferguson
• New Scientist’s Energy Fantasies, by Andrew Ferguson
• Scientific American and the Silent Lie, by Albert Bartlett
• Food and Population in 2050, Andrew Ferguson, based on Bernard Gilland
• A Perspective on 2007, by William Dickinson
• Malthus over a 270 Year Perspective, by Andrew Ferguson
• Food Supply after the Demise of Cheap Energy, by Andrew Ferguson

October 2007

• Clive Ponting’s ‘A Green History of the World, Part 5’, by Martin Desvaux.
• Population perspectives using eco-footprinting, by David Nicholson-Lord
• The economists’ myths, by Lindsey Grant
• The power density of ethanol from Brazilian sugar cane, by Andrew Ferguson
• Political realities in democracies, by Alan Ferguson
• Demographic significance of the 40 factor, by William Stanton
• The limits to wind penetration in the UK, by Andrew Ferguson
• Choosing the best uncontrollable between wind and PV, by Andrew Ferguson
• USA — One billion in 2075, Population-Environment Balance

April 2007

• Clive Ponting’s ‘A Green History of the World, Part 4’, by Martin Desvaux.
• Food shortage and population: past, present and future, by James Duguid
• Energy and population, by Andrew Ferguson
• Three deadly delusions, by Andrew Ferguson
• Six inconvenient truths, by Andrew Ferguson
• Reviewing the Stern Review, by Andrew Ferguson
• Germany’s experience of ‘uncontrollables’, by Andrew Ferguson
• The extent of the immigration problem in the USA, by Virginia Abernethy
• Paths to wisdom, Number 3, by Sandy Irvine

October 2006

• Clive Ponting’s ‘A green history of the world’, Part 3, by Martin Desvaux.
• Climate change and rising sea level — an update, by John Nunn.
• Planets for ecological footprints and carbon absorption, by Andrew Ferguson
• Planet Earth — users and losers, by Sangeeta Sonak
• Population limits and environmental resources, by David and Marcia Pimentel
• The 20% ‘uncontrollables’ limit, by Andrew Ferguson
• Lagoons of silence within the renewables lobby, by Andrew Ferguson
• Why population concerns are not politically correct, by Jim Duguid
• Scientific and journalistic goofs II, by Andrew Ferguson

April 2006

• Clive Ponting’s ‘A green history of the world’, Part 2, by Martin Desvaux.
• Human prospects over the next 70 years, by Andrew Ferguson.
• Population crises and population cycles, by Claire and WMS Russell
• A monograph on Hartmann’s ‘The Last Hours of Ancient Sunlight’, by Andrew Ferguson
• Other views on Hartmann, by Lindsey Grant, Val Stevens, James Duguid
• On development, demography and climate change, by Tim Dyson
• An expanded glossary of wind terms, by Andrew Ferguson
• Paths to Wisdom, Number 2, by Val Stevens

October 2005

• Clive Ponting’s ‘A Green History of the World’, Part 1, by Martin Desvaux.
• A Plain Man’s Questions Concerning Wind Power, by Edmund Davey and Andrew Ferguson.
• A Plain Man’s Questions: Wind Power in Theory and Practice, by Andrew Ferguson and ‘George’.
• Why Wind Power Works for Denmark, by Hugh Sharman
• Wind in Wisconsin, by Andrew Ferguson
• Population, Migration and Globalization, by Herman Daly
• The Hydrogen Economy: Reality or Fantasy, by Andrew Ferguson
• Paths to Wisdom, Number 2, by Jay Hanson

April 2005

• The Solar Fraud: Why solar energy won’t run the world, by Howard C. Hayden.
• Energy at the Crossroads, by Vaclav Smil
• The Collapsing Bubble, by Lindsey Grant
• God Bless America, by Edmund Davey
• Web of Deceit, by Mark Curtis
• The Roots of Delusion: A quest, by Andrew Ferguson
• Assessing the Millennium Assessment, by Andrew Ferguson
• The Way: An ecological world view, by John Gray and Edward Goldsmith
• Scientific and Journalistic Goofs, by Albert A. Bartlett

October 2004

• Climate Change and Sea Level in relation to Population, by John Nunn.
• Hydrogen as an Energy Carrier, by Andrew Ferguson
• ‘Vexponential’ Growth in the 21st Century, by Andrew Ferguson
• Comparing WROG [Weak Restraints on Growth] Periods, by Andrew Ferguson
• Population Growth in the United States and Canada: a Role for Scientists, by Peter Salonius
• Capacity Factors — a simple analogy, by Andrew Ferguson
• The Relative Cost of Photovoltaics and Wind Power, by Andrew Ferguson
• A Rule of Thumb for PV Annual Capacity Factors, by Andrew Ferguson
• Strangely like War: the Global Assault on Forests, by Derrick Jensen and George Draffan

April 2004

• A Green History of the World by Clive Ponting, and The Rapid Growth of Human Populations 1750–2000 by William Stanton, a review, by Roger Martin
• The Rapid Growth of Human Populations 1750–2000 by William Stanton — the publisher’s introduction
• World History: A New Perspective by Clive Ponting: a review, by Andrew Ferguson
• The Limits to Wind Power, by James Duguid, John Dyson and Andrew Ferguson
• The Meaning and Implications of Capacity Factors, by Andrew Ferguson
• Hydrogen and Intermittent Energy Sources, by Andrew Ferguson
• Hydrogen Fantasies, by Andrew Ferguson

October 2003

• Verdict on the hydrogen experiment — an update, by Andrew Ferguson
• Contributions to the Second Footprint Forum, Part II from Colin Campbell, Jill Curnow of Sustainable Population Australia, Professor James Duguid, Andrew Ferguson of OPT, Professor John Guillebaud of OPT, Dr David and Marcia Pimentel of Cornell University, USA, J. Kenneth Smail of Ohio, and William Stanton of OPT, by Andrew Ferguson
• The Crucial Limit: 11 cubic km of carbon per decade, by Andrew Ferguson

April 2003

• Wind/Biomass energy capture: an update, by Andrew Ferguson
• Implications of the USDA 2002 update on ethanol from corn, by Andrew Ferguson
• Questions concerning liquid sunshine, by Edmund Davey & Andrew Ferguson
• Global warming: extracts from an interview with John Houghton
• Yes, Johannesburg was a WSII, by Andrew Ferguson
• Questions concerning eco-footprinting, by Edmund Davey & Andrew Ferguson
• Bjorn Lomborg, spin doctor extraordinaire, by Jill Curnow of Sustainable Population Australia

October 2002

• The Second Footprint Forum, Part 1: The carbon absorption paradigm. Ed. Andrew Ferguson
• Contribution to the Second Footprint Forum, Part 1, by Jill Curnow of Sustainable Population Australia.
• Contribution to the Second Footprint Forum, Part 1, by David Pimentel of Cornell University.
• The Second Footprint Forum, Part 1: concluding implications, by Andrew Ferguson
• Questions concerning photovoltaics, Parts 1 & 2, by Edmund Davey & Andrew Ferguson
• The cost of stand-alone PV electricity, by Andrew Ferguson
• Wind/biomass energy capture, by Andrew Ferguson
• Adjusting populations to match biocapacity, by Andrew Ferguson (Published in The Pherologist, May 2002)

April 2002

• The petro-population parallel, by Gard Binney
• Verdict on the hydrogen experiment, by Andrew Ferguson
• Convention to combat desertification: notes
• Brown’s eco-economy, by Andrew Ferguson
• Earth Day, as seen by the Earth, by Dr Donella Meadows
• Global forest prospects in a world of six billion [extract], by Annie Faulkner
• Why Canada needs a population policy [extract], by J. Anthony Cassils & Madeline Weld
• The carrying capacity implications of Plimer’s ‘A short history of Planet Earth, by Andrew Ferguson
• A question of survival [extracts], by Edward Goldsmith
• Ice age, glacial and interglacial, by Andrew Ferguson
• The population implications of Houghton’s’Global warming: the complete briefing’, by Andrew Ferguson