WG1 AR5 Ch1

Chapter 1 - Introduction

This chapter is part of the Fifth Assessment Report of Working Group I.

Original text

as published

CLA (Coordinating Lead Authors)

• Ulrich Cubasch
• Donald Wuebbles

LA (Lead Authors)

• Deliang Chen
• Maria Cristina Facchini
• David Frame
• Natalie Mahowald
• Jan-Gunnar Winther

Contributing Authors (Click "Expand" to see list)

• Achim Brauer (Germany)
• Lydia Gates (Germany)
• Emily Janssen (USA)
• Frank Kaspar (Germany)
• Janina Körper (Germany)
• Valérie Masson-Delmotte (France)
• Malte Meinshausen (Australia/Germany)
• Matthew Menne (USA)
• Carolin Richter (Switzerland)
• Michael Schulz (Germany)
• Uwe Schulzweida (Germany)
• Bjorn Stevens (Germany/USA)
• Rowan Sutton (UK)
• Kevin Trenberth (USA)
• Murat Türkeş (Turkey)
• Daniel S. Ward (USA)

Review Editors

• Yihui Ding (China)
• Linda Mearns (USA)
• Peter Wadhams (UK)

Contents

• 151 Executive summary
• 151.1 Chapter preview
• 151.2 Rationale and Key Concepts of the WGI Contribution
  • 151.2.1 Setting the Stage for the Assessment
  • 151.2.2 Key Concepts in Climate Science
  • 151.2.3 Multiple Lines of Evidence for Climate Change
• 151.3 Indicators of Climate Change
  • 151.3.1 Global and Regional Surface Temperatures
  • 151.3.2 Greenhouse Gas Concentrations
  • 151.3.3 Extreme Events
  • 151.3.4 Climate Change Indicators
    • 151.3.4.1 Sea Level
    • 151.3.4.2 Ocean Acidification
    • 151.3.4.3 Ice
• 151.4 Treatment of Uncertainties
  • 151.4.1 Uncertainty in Environmental Science
  • 151.4.2 Characterizing Uncertainty
  • 151.4.3 Treatment of Uncertainty in IPCC
  • 151.4.4 Uncertainty Treatment in This Assessment
• 151.5 Advances in Measurement and Modelling Capabilities
  • 151.5.1 Capabilities of Observations
  • 151.5.2 Capabilities in Global Climate Modelling
• 151.6 Overview and Road Map to the Rest of the Report
• Box 151.1 Description of Future Scenarios
• 151 Frequently asked questions
• 151 References

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