The material presented here chiefly dates from the late 1960s to the late 1990s and there is thus a pronounced emphasis on Warner's later advisory and professional involvements with UK and international organisations. Warner's professional career as a chemical engineer, including his partnership in Cremer and Warner, and such significant activities as the Flixborough Inquiry are only sketchily represented.
There is biographical material relating to Warner's life and career including curricula vitae and autobiographical accounts. There is Warner's collection of 1930s memorabilia, much of it relating to his student and Left wing activities in that era, and to his musical interests. A little material relating to Warner's career and professional interests includes documentation of a 1956 visit to India with the United Kingdom Heavy Engineering Mission. Honours and awards principally comprises letters of congratulation received on his knighthood; other awards documented include the Rhineland Prize for Environmental Protection 1984 and the Gerard Piel Award 1991. Warner had many interests outside his work, those documented include the Old Bancroftians Association and his involvement with Church activities, internationally (European Ecumenical Assembly Peace with Justice', Basel, Switzerland, May 1989), regionally (Diocese of Chelmsford) and locally (St James Church, Brightlingsea). There is a little family correspondence and personal correspondence 1954-1996, and a number of photographs.
Records of the Scientific Committee on Problems of the Environment (SCOPE) form the single largest component of this collection. They present documentation of Warner's general involvement with SCOPE, including as Treasurer, but the most significant and sizeable components document his involvement - as chairman - with the three SCOPE projects: ENUWAR, RADPATH and RADTEST. All three are extensively covered with a very wide range of material. It includes initial proposals for and establishment of the projects, project membership, funding, areas to be covered, project organisation and management, arrangements for workshops, papers presented and preparation of the published reports. There is also extensive printed and photocopy background material, the bulk kept in numbered sequences relating to the three projects, and some audio-visual material. The records also include papers relating to the RADSITE project, to a 1991 ad hoc study by SCOPE experts of the effects of the Kuwaiti oil fires against which Nuclear winter' predictive models could be tested, and to the work of the SCOPE Unit at Essex.
Societies and organisations material includes documentation of 52 UK and international bodies. The largest group of papers relates to the Royal Society Study Groups on Assessment and Perception of Risk, chaired by Warner, which reported in 1983 and 1992. There is coverage of the establishment of the Groups, their ongoing work, the preparation and reception of the reports. Other significant documentation in the section records Warner's involvement with a number of specialist working groups established by the engineering profession to assess environmental hazards and risk more generally. These include the Council of Engineering Institutions' Working Party on Pollution, the Hazards Forum and the Institution of Chemical Engineers' Working Party on Nomenclature for Hazard and Risk. There is also material on Warner's membership of the UK National Coordination Committee for the International Decade for Natural Disaster Reduction, established in 1990, and on the risk assessment subgroup of the Deregulation Task Force established in 1994. Public service commitments covered include Warner's Trusteeship of the International Technological University and his Pro-Chancellorship of the Open University. Of particular interest is the comprehensive documentation of Warner's work establishing and promoting Volunteers for Ionising Radiation.
Lectures and broadcasts material presents drafts for some of Warner's output as public, invitation and university (as Visiting Professor) lectures. He was in considerable demand as a distinguished chemical engineer, but also for his expertise in such other fields as risk assessment and arbitration and his involvement with important national and international programmes. Prestigious lectures documented include Measurements, Models and Men', the 10th Thomson Lecture, Royal Institution, 1970; Possibilities in Pollution Control', the 59th Thomas Hawkesley Lecture, Institution of Mechanical Engineers, 1973; Society's Response to Windscale', the Royal Society Hartley Lecture, 1978; and the Marchon Lecture Nuclear Power - Panacea or Peril' at the University of Newcastle upon Tyne, 1979. There are series of lectures given at UCL and Imperial College London 1971 and (Imperial) 1975, some overseas lectures, and talks given at less formal occasions. There is also documentation of some of Warner's broadcasting output, principally for BBC Radio.
Drafts and publications material is not extensive, though the distinction between lectures and publications is blurred and many lectures were subsequently published. Working in industry rather than academia, Warner's principal efforts did not usually result in published output. Publications represented in the archive include Nitric Acid Production', Warner's first substantial article written for the Institution of Chemical Engineers (1946) in which he described his wartime work with Royal Ordnance Factories, other articles on chemical plants, and papers on chemical engineering education. Also of note is Warner's chapter Production Technology', for Technology Today edited by Edward de Bono (London 1971). Warner had an interest in de Bono's unconventional approach to learning and believed it could help engineers and technologists. There are also letters to the press, book reviews, and a number of drafts for which there is no evidence of publication.
Warner's visits and involvement in conferences as organiser and speaker is documented, 1962-1997. Most of the conferences for which records survive concern some aspect of risk, safety and environmental hazards; in particular there is good material relating to the International Risk Assessment Conference, London, October 1992 and the Royal Society Discussion Meeting on Extrapolation of Dose Response Data for Risk Assessment, July 1995. There is also noteworthy coverage of meetings in the later 1960s of the F襩ration Europ褮ne d'Associations Nationales d'Ing譩eurs and the Conference of Engineering Societies of Western Europe and the USA, much of the discussions of which related to improving international cooperation between national engineering organisations. Extended overseas visits documented include Australia in 1976, 1980 and 1985, Canada in 1981, and India in 1986 and 1990.
Warner's correspondence is presented in a number of series, which together span the period from the mid 1960s to the late 1990s, with a few earlier letters. There is an initial alphabetical sequence, the bulk of which dates from the 1960s. Although there are few extended exchanges, and those on engineering topics or consultancies are rarely complete, much of this sequence relates to chemical engineering projects for Cremer and Warner in the 1960s, and is thus virtually the only substantive documentation of Warner's work for this company. Warner appears to have retained the bulk of his engineering and business correspondence in alphabetical arrangement up to the end of the 1970s, for the second series, which seems to follow on, is an alphabetically arranged sequence of groups of letters arranged by correspondent. A third alphabetical sequence dating from the 1980s and 1990s chiefly relates to SCOPE projects. There are also separate chronological sequences of correspondence covering the period 1977 (carbon copies of outgoing correspondence May-December) and 1980-1997.