Climate Alarmism Reconsidered Climate Alarmism Reconsidered robert l. bradley jr The Institute of Economic Affairs First published in Great Britain in 2003 by The Institute of Economic Affairs 2 Lord North Street Westminster London sw1p 3lb in association with Profi le Books Ltd The mission of the Institute of Economic Affairs is to improve public understanding of the fundamental institutions of a free society, with particular reference to the role of markets in solving economic and social problems. Copyright © The Institute of Economic Affairs 2003 The moral right of the author has been asserted. All rights reserved. Without limiting the rights under copyright reserved above, no part of this publication may be reproduced, stored or introduced into a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording or otherwise), without the prior written permission of both the copyright owner and the publisher of this book. A CIP catalogue record for this book is available from the British Library. isbn 0 255 36541 1 Many IEA publications are translated into languages other than English or are reprinted. Permission to translate or to reprint should be sought from the Director General at the address above. Typeset in Stone by MacGuru Ltd [email protected] Printed and bound in Great Britain by Hobbs the Printers CONTENTS The author 9 Foreword 10 Acknowledgements 13 Summary 14 List of fi gures 16 1 Introduction 19 2 Carbon energy sustainability 23 Growing supply 23 Declining pollution 28 Improving quality 32 Increasing consumption/falling intensity 33 False alarms 35 Relative superiority 37 Conclusion 39 3 Issues in climate science 41 Natural and anthropogenic change 43 Scientifi c optimism 49 Benign warming distribution 51 Water vapour feedback revision 61 Conclusion 71 4 Issues in climate economics 72 Carbon dioxide – a positive GHG 72 IPCC damage analysis versus mainstream economics 75 1995 IPCC report: Economic and Social Dimensions 76 2001 IPCC report: Impacts, Adaptation, and Vulnerability 78 Realism/optimism 86 Realism/restraint 90 Politicisation versus optimism 94 Sequestration versus mitigation 96 Conclusion 97 5 Framing the policy issues 99 The Kyoto conundrum 100 Stasism and ‘problematic’ warming 107 The precautionary principle 111 Poverty 114 Conclusion 118 6 Climate policy 119 ‘No regrets’ GHG reductions 119 Beyond ‘no regrets’: a little something? 122 The Nordhaus/Boyer proposal 123 Cap-and-trade 124 Beyond ‘no regrets’: a lot of something? 126 Environmentalist/environmental regret 131 Hydro and nuclear power 132 Kyoto compromises 133 Emission trade-offs 134 Renewable trade-offs 135 A technological fi x? 139 Corporatism (corporate welfare) 141 Conclusion 142 7 Conclusions 144 Appendix A: Falsifi ed carbon energy alarmism 147 Depletion 147 Pollution 151 Climate change 152 Conservation 154 Power plant impact 155 Loss of freedom/central planning 156 Policy 157 Appendix B: IPCC support for climate optimism 158 Natural variability – important 158 Rate of atmospheric GHG build-up – overmodelled 159 Satellite/balloon temperature records – modest warming 159 Reduced temperature variation (decreasing diurnal cycle) 160 Sub-freezing warming concentration 162 Sea level rise – falling estimates 163 Weather extremes not increasing 164 Surprises – very speculative 165 Increased precipitation – not much 166 Feedback effects – the key uncertainty 166 Climate modelling – tentative 168 Aerosol cooling – in dispute 169 Regional forecasting – not reliable 169 Appendix C: W. S. Jevons – fi rst critic of renewable energy 171 Wind power 172 Hydropower 173 Biomass 174 Geothermal 174 About the IEA 176 THE AUTHOR Robert L. Bradley Jr is president of the Institute for Energy Research in Houston, Texas, and a senior research fellow at the University of Houston. He is author of The Mirage of Oil Protection (1989), Oil, Gas, and Government: The US Experience (2 vols, 1996) and Julian Simon and the Triumph of Energy Sustainability (2000), as well as shorter studies on energy history and policy. He received the Julian L. Simon Memorial Award for 2002 for his work on energy sustainability issues. Bradley received his BA in economics from Rollins College, where he received the S. Truman Olin Award in Economics. He received an MA in economics from the Univer- sity of Houston and a PhD with distinction in political economy from International College. 9 FOREWORD It has become accepted wisdom that human activity is chang- ing the climate for the worse, and policy activism is necessary to transform the energy mix away from carbon-based fuels. This view is propagated through the media and at educational institutions throughout the UK and the EU more generally. Unfortunately, it is rarely exposed to critical appraisal, turning what should be a live intellectual debate into ‘indoctrination’ rather than ‘education’. Hobart Paper 146 by Rob Bradley of the Institute for Energy Research in Houston, Texas, is a welcome reassessment of much of the accepted wisdom regarding climate change. His wide-rang- ing analysis documents a number of weaknesses in the argument that we are facing serious adverse impacts from climate change. His argument gains weight when the general context of energy sus- tainability debate is considered, where the ‘alarmists’ on fossil-fuel reliance have been wrong time and again. There is no longer an energy depletion problem: the evidence is clear that, as long as governments do not interfere, new sources of energy can be found to meet demand at constant costs or better – not just for the next generation or two but for centuries ahead. Pollution is declining dramatically in the USA and in the EU. Energy is used with greater and greater effi ciency, as the energy required per unit of output decreases. And market forces have ef- fectively addressed energy reliability/security challenges as com- 10
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