二氧化碳排放进程报告 2012.pdfVIP

Contents Glossary v Acronyms vii Foreword viii Executive Summary 1 Chapter 1: Introduction 8 Chapter 2: Current and Projected Greenhouse Gas Emissions 9 2.1 Introduction 9 2.2 Current and projected global emissions 10 2.3 National emission reduction pledges and expected global emissions in 2020 as a result of the pledges 10 2.4 Current and projected national emissions 13 2.5 Comparison of current and expected emissions and emission intensities in 2020 for G20 countries with a pledge 18 2.6 Summary 18 Chapter 3: The Emissions Gap – An Update 21 3.1 Introduction 21 3.2 Which scenarios are analysed? 21 3.3 Emission levels in 2020, 2030 and 2050 for the 2°C target 23 3.4 The emissions gap for the 2°C target 24 3.5 Results for a 1.5°C target 24 3.6 Other findings from the least cost scenarios 26 3.7 Results of later action scenarios 28 3.8 Present UNFCCC policy options to bridge the gap 29 3.9 The implications of current emissions levels and the emissions gap 29 Chapter 4 Bridging the Emissions Gap 30 4.1 Introduction 30 4.2 Emission reduction potentials by sector in 2020 – summary and update 30 4.3 Best practice policies 32 4.4 Conclusions 43 References 45 Glossary Annex I Countries – the industrialised countries (and over a specified timescale. For the purpose of this report, those in transition to a market economy) which took on greenhouse gas emissions (unless otherwise specified) are obligations to reduce their greenhouse gas emissions the sum of the basket of greenhouse gases listed in this under the United Nations Framework