IPCC reasons for concern regarding climate change risks

The reasons for concern framework communicates scientific understanding about risks in relation to varying levels of climate change. The framework, now a cornerstone of the IPCC assessments, aggregates global risks into five categories as a function of global mean temperature change. We review the framework's conceptual basis and the risk judgments made in the most recent IPCC report, confirming those judgments in most cases in the light of more recent literature and identifying their limitations. We point to extensions of the framework that offer complementary climate change metrics to global mean temperature change and better account for possible changes in social and ecological system vulnerability. Further research should systematically evaluate risks under alternative scenarios of future climatic and societal conditions.

[1]  Acknowledgements , 1992, Experimental Gerontology.

[2]  S. Cutter.  Societal Responses to Environmental Hazards. , 1996 .

[3]  R. Mittermeier,et al.  Biodiversity hotspots for conservation priorities , 2000, Nature.

[4]  J. Palutikof,et al.  Climate change 2007 : impacts, adaptation and vulnerability , 2001 .

[5]  Canran Liu,et al.  Global Warming and Extinctions of Endemic Species from Biodiversity Hotspots , 2006, Conservation biology : the journal of the Society for Conservation Biology.

[6]  F. Tubiello,et al.  Global food security under climate change , 2007, Proceedings of the National Academy of Sciences.

[7]  R. Steneck,et al.  Coral Reefs Under Rapid Climate Change and Ocean Acidification , 2007, Science.

[8]  P. Glynn,et al.  Climate change and coral reef bleaching: An ecological assessment of long-term impacts, recovery trends and future outlook , 2008 .

[9]  Ortwin Renn,et al.  Concepts of Risk: An Interdisciplinary Review Part 1: Disciplinary Risk Concepts , 2008 .

[10]  Marcel E Visser,et al.  Keeping up with a warming world; assessing the rate of adaptation to climate change , 2008, Proceedings of the Royal Society B: Biological Sciences.

[11]  Wolfgang Lucht,et al.  Tipping elements in the Earth's climate system , 2008, Proceedings of the National Academy of Sciences.

[12]  A Fouillet,et al.  Has the impact of heat waves on mortality changed in France since the European heat wave of summer 2003? A study of the 2006 heat wave. , 2008, International journal of epidemiology.

[13]  T. Karl,et al.  Global climate change impacts in the United States. , 2009 .

[14]  Jan Corfee-Morlot,et al.  Assessing dangerous climate change through an update of the Intergovernmental Panel on Climate Change (IPCC) “reasons for concern” , 2009, Proceedings of the National Academy of Sciences.

[15]  C. Field,et al.  The velocity of climate change , 2009, Nature.

[16]  D. Walker,et al.  Vegetation greening in the Canadian Arctic related to decadal warming. , 2009, Journal of environmental monitoring : JEM.

[17]  Michael N. Gooseff,et al.  Effects of Hillslope Thermokarst in Northern Alaska , 2009 .

[18]  Rachel Warren,et al.  Increasing impacts of climate change upon ecosystems with increasing global mean temperature rise , 2009 .

[19]  I. Stirling,et al.  Ecological Dynamics Across the Arctic Associated with Recent Climate Change , 2009, Science.

[20]  T. Lenton,et al.  The coral reef crisis: the critical importance of<350 ppm CO2. , 2009, Marine pollution bulletin.

[21]  G. Yohe.  “Reasons for concern” (about climate change) in the United States , 2010 .

[22]  C. Turney,et al.  Does the Agulhas Current amplify global temperatures during super‐interglacials? , 2010 .

[23]  J. Parfitt,et al.  Food waste within food supply chains: quantification and potential for change to 2050 , 2010, Philosophical Transactions of the Royal Society B: Biological Sciences.

[24]  Gang Liu,et al.  NOAA's Coral Reef Watch program from satellite observations , 2011, Ann. GIS.

[25]  D. Lobell,et al.  Climate Trends and Global Crop Production Since 1980 , 2011, Science.

[26]  Franklin B. Schwing,et al.  The Pace of Shifting Climate in Marine and Terrestrial Ecosystems , 2011, Science.

[27]  R. G. Davies,et al.  The Influence of Late Quaternary Climate-Change Velocity on Species Endemism , 2011, Science.

[28]  A. Hoffmann,et al.  Climate change and evolutionary adaptation , 2011, Nature.

[29]  Philip K. Thornton,et al.  Agriculture and food systems in sub-Saharan Africa in a 4°C+ world , 2011, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences.

[30]  S. Goetz,et al.  Shrub expansion in tundra ecosystems: dynamics, impacts and research priorities , 2011, Environmental Research Letters.

[31]  R. Ohlemüller,et al.  Rapid Range Shifts of Species Associated with High Levels of Climate Warming , 2011, Science.

[32]  A. Daccache,et al.  Climate change impacts on crop productivity in Africa and South Asia , 2012 .

[33]  Kerry A. Emanuel,et al.  The impact of climate change on global tropical cyclone damage , 2012 .

[34]  P. Peduzzi,et al.  Global trends in tropical cyclone risk , 2012 .

[35]  T. Stocker,et al.  Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation. A Special Report of Working Groups I and II of IPCC Intergovernmental Panel on Climate Change , 2012 .

[36]  M. Kummu,et al.  Lost food, wasted resources: global food supply chain losses and their impacts on freshwater, cropland, and fertiliser use. , 2012, The Science of the total environment.

[37]  Robert J. Nicholls,et al.  The effects of adaptation and mitigation on coastal flood impacts during the 21st century. An application of the DIVA and IMAGE models , 2013, Climatic Change.

[38]  P. Stott,et al.  Human activity and anomalously warm seasons in Europe , 2012 .

[39]  K. Feeley,et al.  Amazon's vulnerability to climate change heightened by deforestation and man‐made dispersal barriers , 2012 .

[40]  C. Field.  Managing the risks of extreme events and disasters to advance climate change adaption , 2012 .

[41]  Christoph Heinze,et al.  Multiple stressors of ocean ecosystems in the 21st century: projections with CMIP5 models , 2013 .

[42]  Jason Lowe,et al.  Quantifying the benefit of early climate change mitigation in avoiding biodiversity loss , 2013 .

[43]  N. Arnell,et al.  A global assessment of the impact of climate change on water scarcity , 2016, Climatic Change.

[44]  T. Carter,et al.  Climate and socio-economic scenarios for climate change research and assessment: reconciling the new with the old , 2014, Climatic Change.

[45]  J. Foley,et al.  Redefining agricultural yields: from tonnes to people nourished per hectare , 2013 .

[46]  Michael K Schwartz,et al.  The climate velocity of the contiguous United States during the 20th century , 2013, Global change biology.

[47]  Felipe J. Colón-González,et al.  Multimodel assessment of water scarcity under climate change , 2013, Proceedings of the National Academy of Sciences.

[48]  Benjamin F. Jones,et al.  What Do We Learn from the Weather? The New Climate-Economy Literature , 2013 .

[49]  H. Resit Akçakaya,et al.  Identifying the World's Most Climate Change Vulnerable Species: A Systematic Trait-Based Assessment of all Birds, Amphibians and Corals , 2013, PloS one.

[50]  H. Pörtner,et al.  Sensitivities of extant animal taxa to ocean acidification , 2013 .

[51]  Omar D. Cardona,et al.  Scenarios for vulnerability: opportunities and constraints in the context of climate change and disaster risk , 2015, Climatic Change.

[52]  James W. Jones,et al.  Assessing agricultural risks of climate change in the 21st century in a global gridded crop model intercomparison , 2013, Proceedings of the National Academy of Sciences.

[53]  Matthias Garschagen,et al.  Exploring the relationships between urbanization trends and climate change vulnerability , 2015, Climatic Change.

[54]  P. Kyle,et al.  Climate change effects on agriculture: Economic responses to biophysical shocks , 2013, Proceedings of the National Academy of Sciences.

[55]  Richard S. J. Tol,et al.  Correction and Update: The Economic Effects of Climate Change , 2014 .

[56]  Thomas Sterner,et al.  Global warming: Improve economic models of climate change , 2014, Nature.

[57]  Climate Change 2014 Impacts, Adaptation, and Vulnerability: Cross-Chapter Boxes , 2014 .

[58]  R. Almond,et al.  Mechanisms underpinning climatic impacts on natural populations: altered species interactions are more important than direct effects , 2014, Global change biology.

[59]  William J. Sydeman,et al.  Geographical limits to species-range shifts are suggested by climate velocity , 2014, Nature.

[60]  W. Ligtvoet,et al.  On the relation between weather-related disaster impacts, vulnerability and climate change , 2014, Climatic Change.

[61]  R. Feely,et al.  Limacina helicina shell dissolution as an indicator of declining habitat suitability owing to ocean acidification in the California Current Ecosystem , 2014, Proceedings of the Royal Society B: Biological Sciences.

[62]  Stewart J. Cohen,et al.  Climate Change 2014: Impacts,Adaptation, and Vulnerability. Part A: Global and Sectoral Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change , 2014 .

[63]  D. Lobell,et al.  A meta-analysis of crop yield under climate change and adaptation , 2014 .

[64]  Kiyoshi Takahashi,et al.  Climate change impact and adaptation assessment on food consumption utilizing a new scenario framework. , 2014, Environmental science & technology.

[65]  B. Scheuchl,et al.  Widespread, rapid grounding line retreat of Pine Island, Thwaites, Smith, and Kohler glaciers, West Antarctica, from 1992 to 2011 , 2014 .

[66]  Tomoko Hasegawa,et al.  Consequence of climate mitigation on the risk of hunger. , 2015, Environmental science & technology.

[67]  Brian C. O'Neill,et al.  Future population exposure to US heat extremes , 2015 .

[68]  Murali Haran,et al.  Large ensemble modeling of the last deglacial retreat of the West Antarctic Ice Sheet: comparison of simple and advanced statistical techniques , 2015 .

[69]  J. Birkmann,et al.  The World Risk Index – An Approach to Assess Risk and Vulnerability on a Global Scale , 2015 .

[70]  F. Joos,et al.  Contrasting futures for ocean and society from different anthropogenic CO2 emissions scenarios , 2015, Science.

[71]  Mukund Ram Bangalore.  Shock Waves: Managing the Impacts of Climate Change on Poverty , 2015 .

[72]  J. Birkmann,et al.  Assessing the risk of loss and damage: exposure, vulnerability and risk to climate-related hazards for different country classifications , 2015 .

[73]  K. Caldeira,et al.  Combustion of available fossil fuel resources sufficient to eliminate the Antarctic Ice Sheet , 2015, Science Advances.

[74]  Daniel F. Martin,et al.  Century-scale simulations of the response of the West Antarctic Ice Sheet to a warming climate , 2015 .

[75]  K. Rode,et al.  Can polar bears use terrestrial foods to offset lost ice‐based hunting opportunities? , 2015 .

[76]  E. Fischer,et al.  Anthropogenic contribution to global occurrence of heavy-precipitation and high-temperature extremes , 2015 .

[77]  S. Butchart,et al.  Considering the impact of climate change on human communities significantly alters the outcome of species and site‐based vulnerability assessments , 2015 .

[78]  Qiuhong Tang,et al.  New climate and socio-economic scenarios for assessing global human health challenges due to heat risk , 2015, Climatic Change.

[79]  P. Tschakert.  1.5°C or 2°C: a conduit’s view from the science-policy interface at COP20 in Lima, Peru , 2015, Climate Change Responses.

[80]  M. C. Urban.  Accelerating extinction risk from climate change , 2015, Science.

[81]  Roger M. Cooke,et al.  Expert judgement and uncertainty quantification for climate change , 2016 .

[82]  Tamma A. Carleton,et al.  Social and economic impacts of climate , 2016, Science.

[83]  R. Kopp,et al.  Tipping elements and climate–economic shocks: Pathways toward integrated assessment , 2016, 1603.00850.

[84]  Corinne Le Quéré,et al.  Climate Change 2013: The Physical Science Basis , 2013 .