A Global Deal For Nature: Guiding principles, milestones, and targets

The Global Deal for Nature sets an ambitious agenda to protect our biosphere through ecosystem conservation and land restoration. The Global Deal for Nature (GDN) is a time-bound, science-driven plan to save the diversity and abundance of life on Earth. Pairing the GDN and the Paris Climate Agreement would avoid catastrophic climate change, conserve species, and secure essential ecosystem services. New findings give urgency to this union: Less than half of the terrestrial realm is intact, yet conserving all native ecosystems—coupled with energy transition measures—will be required to remain below a 1.5°C rise in average global temperature. The GDN targets 30% of Earth to be formally protected and an additional 20% designated as climate stabilization areas, by 2030, to stay below 1.5°C. We highlight the 67% of terrestrial ecoregions that can meet 30% protection, thereby reducing extinction threats and carbon emissions from natural reservoirs. Freshwater and marine targets included here extend the GDN to all realms and provide a pathway to ensuring a more livable biosphere.

[1]  E. Sala,et al.  Fish banks: An economic model to scale marine conservation , 2016 .

[2]  W. Ripple,et al.  Global forest loss disproportionately erodes biodiversity in intact landscapes , 2017, Nature.

[3]  Paolo Guidetti,et al.  Community-wide effects of marine reserves in the Mediterranean Sea , 2007 .

[4]  P. Dauvergne,et al.  Why is the global governance of plastic failing the oceans , 2018 .

[5]  David W. Macdonald,et al.  Saving the World's Terrestrial Megafauna , 2016, Bioscience.

[6]  D. Pauly,et al.  Catch reconstructions reveal that global marine fisheries catches are higher than reported and declining , 2016, Nature Communications.

[7]  C. Nobre,et al.  Amazon Tipping Point , 2018, Science Advances.

[8]  E. Barbier,et al.  How to pay for saving biodiversity , 2018, Science.

[9]  J. Watson,et al.  Intact ecosystems provide best defence against climate change , 2016 .

[10]  E. Wikramanayake,et al.  The Fate of Wild Tigers , 2007 .

[11]  Leonardo R. Corral,et al.  Titling indigenous communities protects forests in the Peruvian Amazon , 2017, Proceedings of the National Academy of Sciences.

[12]  F. Smith,et al.  Trophic rewilding as a climate change mitigation strategy? , 2018, Philosophical Transactions of the Royal Society B: Biological Sciences.

[13]  Barbara K. Buchner,et al.  Global Landscape of Climate Finance , 2012 .

[14]  Jingyun Fang,et al.  Impacts of species richness on productivity in a large-scale subtropical forest experiment , 2018, Science.

[15]  Yang Chen,et al.  Spatio-Temporal Patterns and Climate Variables Controlling of Biomass Carbon Stock of Global Grassland Ecosystems from 1982 to 2006 , 2014, Remote. Sens..

[16]  L. Botsford,et al.  Equivalence in yield from marine reserves and traditional fisheries management , 1999, Science.

[17]  C. Mora,et al.  The interaction of human population, food production, and biodiversity protection , 2017, Science.

[18]  Ying‐ping Wang,et al.  Grasslands may be more reliable carbon sinks than forests in California , 2018, Environmental Research Letters.

[19]  M. Spalding,et al.  Pelagic provinces of the world: A biogeographic classification of the world’s surface pelagic waters , 2012 .

[20]  C. Rhodes Pollinator Decline – An Ecological Calamity in the Making? , 2018, Science progress.

[21]  G. Allen,et al.  Freshwater Ecoregions of the World: A New Map of Biogeographic Units for Freshwater Biodiversity Conservation , 2008 .

[22]  Bethan C. O’Leary,et al.  Marine reserves can mitigate and promote adaptation to climate change , 2017, Proceedings of the National Academy of Sciences.

[23]  James W. Fourqurean,et al.  Seagrass ecosystems as a globally significant carbon stock , 2012 .

[24]  Carlos M. Duarte,et al.  A blueprint for blue carbon: toward an improved understanding of the role of vegetated coastal habitats in sequestering CO2 , 2011 .

[25]  R. Houghton,et al.  Tropical forests are a net carbon source based on aboveground measurements of gain and loss , 2017, Science.

[26]  A. Moilanen,et al.  Threats from urban expansion, agricultural transformation and forest loss on global conservation priority areas , 2017, PloS one.

[27]  Bethan C. O’Leary,et al.  Effective Coverage Targets for Ocean Protection , 2016 .

[28]  G. Asner,et al.  An above-ground biomass map of African savannahs and woodlands at 25 m resolution derived from ALOS PALSAR , 2018 .

[29]  Marvin N. Wright,et al.  SoilGrids250m: Global gridded soil information based on machine learning , 2017, PloS one.

[30]  L. Hannah,et al.  Avoiding the climate failsafe point , 2018, Science Advances.

[31]  S. Stuart,et al.  Wildlife in a changing world : an analysis of the 2008 IUCN red list of threatened species , 2009 .

[32]  Jack J. Middelburg,et al.  Major role of marine vegetation on the oceanic carbon cycle , 2004 .

[33]  Helmut Haberl,et al.  Exploring the biophysical option space for feeding the world without deforestation , 2016, Nature Communications.

[34]  Catherine A. Novelli,et al.  Assessing real progress towards effective ocean protection , 2018 .

[35]  Klement Tockner,et al.  Freshwater Megafauna: Flagships for Freshwater Biodiversity under Threat , 2017, Bioscience.

[36]  Julian D. Olden,et al.  Global proliferation of small hydropower plants – science and policy , 2018 .

[37]  M. Scheffer,et al.  Trajectories of the Earth System in the Anthropocene , 2018, Proceedings of the National Academy of Sciences.

[38]  J. Berger,et al.  Global decline in aggregated migrations of large terrestrial mammals , 2009 .

[39]  James E. M. Watson,et al.  Biodiversity: The ravages of guns, nets and bulldozers , 2016, Nature.

[40]  W. Bond Ancient grasslands at risk , 2016, Science.

[41]  Lawrence N. Hudson,et al.  Local biodiversity is higher inside than outside terrestrial protected areas worldwide , 2016, Nature Communications.

[42]  Claire Stewart,et al.  The exceptional value of intact forest ecosystems , 2018, Nature Ecology & Evolution.

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

[44]  N. Seddon,et al.  Grounding nature-based climate solutions in sound biodiversity science , 2019, Nature Climate Change.

[45]  Thomas M. Brooks,et al.  Key Biodiversity Areas , 2013 .

[46]  Neil D. Burgess,et al.  An Ecoregion-Based Approach to Protecting Half the Terrestrial Realm , 2017, Bioscience.

[47]  L. Joppa,et al.  High and Far: Biases in the Location of Protected Areas , 2009, PloS one.

[48]  Neil D. Burgess,et al.  Unveiling the patterns and trends in 40 years of global trade in CITES-listed wildlife , 2018, Biological Conservation.

[49]  D. Wilcove,et al.  Persistence of Large Mammal Faunas as Indicators of Global Human Impacts , 2007 .

[50]  Reed F. Noss,et al.  Saving Nature's Legacy: Protecting And Restoring Biodiversity , 1994 .

[51]  F. Chapin,et al.  A safe operating space for humanity , 2009, Nature.

[52]  Javier Romero,et al.  Dynamics of Millenary Organic Deposits Resulting from the Growth of the Mediterranean Seagrass Posidonia oceanica , 1997 .

[53]  O. Ovaskainen,et al.  Defaunation affects carbon storage in tropical forests , 2015, Science Advances.

[54]  D. Strayer,et al.  Freshwater biodiversity conservation: recent progress and future challenges , 2010, Journal of the North American Benthological Society.

[55]  Jennifer L. Molnar,et al.  An attainable global vision for conservation and human well-being , 2018, Frontiers in Ecology and the Environment.

[56]  Raj M. Desai,et al.  From Summits to Solutions: Innovations in Implementing the Sustainable Development Goals , 2018 .

[57]  Barbara A. Block,et al.  Tracking the global footprint of fisheries , 2018, Science.

[58]  Ingolf Kühn,et al.  No saturation in the accumulation of alien species worldwide , 2017, Nature Communications.

[59]  R. Brooks,et al.  Carbon storage dynamics of temperate freshwater wetlands in Pennsylvania , 2018, Wetlands Ecology and Management.

[60]  P. Döll,et al.  High‐resolution mapping of the world's reservoirs and dams for sustainable river‐flow management , 2011 .

[61]  Roberta E. Martin,et al.  Mapped aboveground carbon stocks to advance forest conservation and recovery in Malaysian Borneo , 2018 .

[62]  Sven Teske Achieving the Paris Climate Agreement Goals , 2019 .

[63]  S. Carpenter,et al.  Solutions for a cultivated planet , 2011, Nature.

[64]  J. L. Gittleman,et al.  The biodiversity of species and their rates of extinction, distribution, and protection , 2014, Science.

[65]  Ya-ping Zhang,et al.  Space for nature , 2018, Science.

[66]  Manpreet K. Dhami,et al.  A global test of ecoregions , 2018, Nature Ecology & Evolution.

[67]  M. Santoro GlobBiomass - global datasets of forest biomass , 2018 .

[68]  Robert L. Pressey,et al.  Formulating conservation targets for biodiversity pattern and process in the Cape Floristic Region, South Africa , 2003 .

[69]  W. Mauser,et al.  Global biomass production potentials exceed expected future demand without the need for cropland expansion , 2015, Nature Communications.

[70]  E. Dinerstein,et al.  The Global 200: Priority ecoregions for global conservation , 2002 .

[71]  L. Bastin,et al.  Protected area connectivity: Shortfalls in global targets and country-level priorities , 2018, Biological conservation.

[72]  N. Dudley,et al.  The essential role of other effective area-based conservation measures in achieving big bold conservation targets , 2018, Global Ecology and Conservation.

[73]  David P. Edwards,et al.  A global strategy for road building , 2014, Nature.

[74]  C. Bradshaw,et al.  Primary forests are irreplaceable for sustaining tropical biodiversity , 2011, Nature.

[75]  C. Wilcox,et al.  Plastic waste inputs from land into the ocean , 2015, Science.

[76]  Edward O. Wilson,et al.  Half-Earth: Our Planet's Fight for Life , 2016 .

[77]  D. Pauly,et al.  Evolution of movement rate increases the effectiveness of marine reserves for the conservation of pelagic fishes , 2017, Evolutionary applications.

[78]  Juan Carlos Castilla-Rubio,et al.  Land-use and climate change risks in the Amazon and the need of a novel sustainable development paradigm , 2016, Proceedings of the National Academy of Sciences.

[79]  Kendall R. Jones,et al.  Persistent Disparities between Recent Rates of Habitat Conversion and Protection and Implications for Future Global Conservation Targets , 2016 .

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

[81]  Jennifer L. Molnar,et al.  Marine Ecoregions of the World: A Bioregionalization of Coastal and Shelf Areas , 2007 .

[82]  Pete Smith,et al.  Natural climate solutions , 2017, Proceedings of the National Academy of Sciences.

[83]  R. Arnason,et al.  The sunken billions revisited : progress and challenges in global marine fisheries - overview , 2016 .

[84]  Edward T. A. Mitchard,et al.  Age, extent and carbon storage of the central Congo Basin peatland complex , 2017, Nature.

[85]  W. Laurance Conservation and the Global Infrastructure Tsunami: Disclose, Debate, Delay! , 2018, Trends in ecology & evolution.

[86]  J. Scharlemann,et al.  Minimising the harm to biodiversity of producing more food globally , 2011 .

[87]  Clinton N. Jenkins,et al.  Global and regional priorities for marine biodiversity protection , 2016 .

[88]  Jack J. Middelburg,et al.  Major role of marine vegetation on the oceanic carbon cycle , 2004 .

[89]  W. Laurance,et al.  Roads to riches or ruin? , 2017, Science.

[90]  Carlos Carroll,et al.  Connecting today's climates to future climate analogs to facilitate movement of species under climate change , 2017, Conservation biology : the journal of the Society for Conservation Biology.

[91]  Erle C. Ellis,et al.  A spatial overview of the global importance of Indigenous lands for conservation , 2018, Nature Sustainability.

[92]  G. Hays,et al.  Predators help protect carbon stocks in blue carbon ecosystems , 2015 .

[93]  Joseph Sarkis,et al.  Measuring China's Circular Economy , 2013, Science.

[94]  Paul Beier,et al.  Bolder Thinking for Conservation , 2012, Conservation biology : the journal of the Society for Conservation Biology.

[95]  E. K. Pikitch,et al.  Trophic Downgrading of Planet Earth , 2011, Science.

[96]  H. Haberl,et al.  Unexpectedly large impact of forest management and grazing on global vegetation biomass , 2017, Nature.

[97]  T. Pitcher,et al.  Management Effectiveness of the World's Marine Fisheries , 2009, PLoS biology.

[98]  C. Packer,et al.  Future threats to biodiversity and pathways to their prevention , 2017, Nature.

[99]  Matthew C. Hansen,et al.  Tracking changes and preventing loss in critical tiger habitat , 2016, Science Advances.

[100]  E. Sala,et al.  No-take marine reserves are the most effective protected areas in the ocean , 2018 .

[101]  R. Weiss,et al.  Continued Emissions of the Ozone-Depleting Substance Carbon Tetrachloride From Eastern Asia , 2018, Geophysical research letters.

[102]  Stuart L. Pimm,et al.  How to protect half of Earth to ensure it protects sufficient biodiversity , 2018, Science Advances.