Risk Management and Decision-Making in Relation SPM7 to Sustainable Development
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Risk management and decision-making in relation SPM7 to sustainable development Coordinating Lead Authors: Margot Hurlbert (Canada), Jagdish Krishnaswamy (India) Lead Authors: Edouard Davin (France/Switzerland), Francis X. Johnson (Sweden), Carlos Fernando Mena (Ecuador), John Morton (United Kingdom), Soojeong Myeong (The Republic of Korea), David Viner (United Kingdom), Koko Warner (The United States of America), Anita Wreford (New Zealand), Sumaya Zakieldeen (Sudan), Zinta Zommers (Latvia) Contributing Authors: Rob Bailis (The United States of America), Brigitte Baptiste (Colombia), Kerry Bowman (Canada), Edward Byers (Austria/Brazil), Katherine Calvin (The United States of America), Rocio Diaz-Chavez (Mexico), Jason Evans (Australia), Amber Fletcher (Canada), James Ford (United Kingdom), Sean Patrick Grant (The United States of America), Darshini Mahadevia (India), Yousef Manialawy (Canada), Pamela McElwee (The United States of America), Minal Pathak (India), Julian Quan (United Kingdom), Balaji Rajagopalan (The United States of America), Alan Renwick (New Zealand), Jorge E. Rodríguez-Morales (Peru), Charlotte Streck (Germany), Wim Thiery (Belgium), Alan Warner (Barbados) Review Editors: Regina Rodrigues (Brazil), B.L. Turner II (The United States of America) Chapter Scientist: Thobekile Zikhali (Zimbabwe) This chapter should be cited as: Hurlbert, M., J. Krishnaswamy, E. Davin, F.X. Johnson, C.F. Mena, J. Morton, S. Myeong, D. Viner, K. Warner, A. Wreford, S. Zakieldeen, Z. Zommers, 2019: Risk Management and Decision making in Relation to Sustainable Development. In: Climate Change and Land: an IPCC special report on climate change, desertification, land degradation, sustainable land management, food security, and greenhouse gas fluxes in terrestrial ecosystems [P.R. Shukla, J. Skea, E. Calvo Buendia, V. Masson-Delmotte, H.-O. Pörtner, D.C. Roberts, P. Zhai, R. Slade, S. Connors, R. van Diemen, M. Ferrat, E. Haughey, S. Luz, S. Neogi, M. Pathak, J. Petzold, J. Portugal Pereira, P. Vyas, E. Huntley, K. Kissick, M. Belkacemi, J. Malley, (eds.)]. In press. 673 Chapter 7 Risk management and decision-making in relation to sustainable development Table of contents Executive summary ..................................................................................... 675 Cross-Chapter Box 11 | Gender in inclusive approaches to climate change, land 7.1 Introduction and relation to other chapters .............. 677 and sustainable development ................................................ 717 7.1.1 Findings of previous IPCC assessments 7.5 Decision-making for climate change and land ......... 719 and reports ............................................................................... 677 7.5.1 Formal and informal decision-making .................... 720 Box 7.1: Relevant findings of recent IPCC reports 678 7.5.2 Decision-making, timing, risk, and uncertainty ... 720 7.1.2 Treatment of key terms in the chapter .................. 679 7.5.3 Best practices of decision-making toward 7.1.3 Roadmap to the chapter .................................................. 679 sustainable land management (SLM) ...................... 723 7.2 Climate-related risks for land-based 7.5.4 Adaptive management ..................................................... 723 human systems and ecosystems .......................................... 680 7.5.5 Performance indicators ..................................................... 725 7.2.1 Assessing risk ........................................................................ 680 7.5.6 Maximising synergies and 7.2.2 Risks to land systems arising from climate change 680 minimising trade-offs ........................................................ 725 Cross-Chapter Box 9 | Climate and land pathways .... 727 7.2.3 Risks arising from responses to climate change ... 686 7.2.4 Risks arising from hazard, exposure Case study: Green energy: Biodiversity conservation vs global environment targets? .......... 735 and vulnerability ................................................................... 688 7.3 Consequences of climate – land change for human 7.6 Governance: Governing the land–climate interface 736 well-being and sustainable development .................... 690 7.6.1 Institutions building adaptive 7.3.1 What is at stake for food security? ........................... 690 and mitigative capacity .................................................... 736 7.3.2 Risks to where and how people live: Livelihood 7.6.2 Integration – Levels, modes and scale systems and migration ..................................................... 690 of governance for sustainable development ........ 737 7.3.3 Risks to humans from disrupted Case study: Governance: Biofuels and bioenergy ... 738 ecosystems and species ................................................... 691 Cross-Chapter Box 12 | Traditional biomass use: 7.3.4 Risks to communities and infrastructure ............... 691 Land, climate and development implications ........... 740 Cross-Chapter Box 10 | Economic dimensions 7.6.3 Adaptive climate governance of climate change and land ...................................................... 692 responding to uncertainty .............................................. 742 Box 7.2: Adaptive governance and interlinkages 7.4 Policy instruments for land and climate ........................ 695 of food, fibre, water, energy and land ............................. 743 7.4.1 Multi-level policy instruments ...................................... 695 7.6.4 Participation ............................................................................ 745 7.4.2 Policies for food security and social protection 696 Cross-Chapter Box 13 | Indigenous and local 7.4.3 Policies responding to climate-related extremes 699 knowledge (ILK) ................................................................................. 746 7.4.4 Policies responding to greenhouse gas (GHG) fluxes 701 7.6.5 Land tenure .............................................................................. 749 Case study: Including agriculture in the 7.6.6 Institutional dimensions New Zealand Emissions Trading Scheme (ETS) .......... 703 of adaptive governance ................................................... 753 7.4.5 Policies responding to desertification and 7.6.7 Inclusive governance for degradation – Land Degradation Neutrality (LDN) 705 sustainable development ................................................ 754 7.4.6 Policies responding to land degradation ................ 706 7.7 Key uncertainties and knowledge gaps ......................... 754 Case study: Forest conservation instruments: ................................................................. REDD+ in the Amazon and India ............................................ 709 Frequently Asked Questions 755 7.4.7 Economic and financial instruments FAQ 7.1: How can indigenous knowledge and for adaptation, mitigation, and land ........................ 711 local knowledge inform land-based mitigation 7.4.8 Enabling effective policy instruments – and adaptation options? .............................................................. 755 policy portfolio coherence .............................................. 713 FAQ 7.2: What are the main barriers to and opportunities for land-based 7 7.4.9 Barriers to implementing policy responses .......... 714 responses to climate change? ................................................... 756 References .............................................................................................................. 757 674 Risk management and decision-making in relation to sustainable development Chapter 7 Executive summary mitigation. SSP3 has the opposite characteristics. Under SSP1, only a small fraction of the dryland population (around 3% at 3°C for the Increases in global mean surface temperature are projected year 2050) will be exposed and vulnerable to water stress. However to result in continued permafrost degradation and under SSP3, around 20% of dryland populations (for the year 2050) coastal degradation (high confidence), increased wildfire, will be exposed and vulnerable to water stress by 1.5°C and 24% by decreased crop yields in low latitudes, decreased food 3°C. Similarly under SSP1, at 1.5°C, 2 million people are expected to stability, decreased water availability, vegetation loss be exposed and vulnerable to crop yield change. Over 20 million are (medium confidence), decreased access to food and increased exposed and vulnerable to crop yield change in SSP3, increasing to soil erosion (low confidence). There is high agreement and 854 million people at 3°C (low confidence). Livelihoods deteriorate as high evidence that increases in global mean temperature will a result of these impacts, livelihood migration is accelerated, and strife result in continued increase in global vegetation loss, coastal and conflict is worsened (medium confidence). {Cross-Chapter Box 9 in degradation, as well as decreased crop yields in low latitudes, Chapters 6 and 7, 7.2.2, 7.3.2, Table 7.1, Figure 7.2} decreased food stability, decreased access to food and nutrition, and medium confidence in continued permafrost Land-based adaptation and mitigation responses pose risks degradation and water scarcity in drylands. Impacts are already associated with the effectiveness and potential adverse side- observed across all components (high confidence). Some processes effects of measures chosen (medium confidence). Adverse may experience irreversible impacts at lower levels of warming than side-effects