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Sustainability

Circular economy · Energy · Agriculture · Cities — A working systems-design overview of how 8 billion humans might live within planetary boundaries by...

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This Shipslides page presents Sustainability as an interactive HTML presentation deck in the Nature catalog with 13 slides. The share page keeps the uploaded deck sandboxed while exposing readable context, topics, and a slide outline for viewers and search engines.

Circular economy · Energy · Agriculture · Cities — A working systems-design overview of how 8 billion humans might live within planetary boundaries by mid-century. Key sections include: Sustainability; Brundtland's Definition; Nine Limits, Six Crossed; Take, Make, Waste → Cycle; The Steepest Curve; Farming the Doughnut; The 15-Minute City; Costa Rica's Power Grid; The Toolkit Builders; Lessons from 3.8 Billion Years of R&D.

Key sections

  • 01Sustainability
  • 02Brundtland's Definition
  • 03Nine Limits, Six Crossed
  • 04Take, Make, Waste → Cycle
  • 05The Steepest Curve
  • 06Farming the Doughnut
  • 07The 15-Minute City
  • 08Costa Rica's Power Grid
  • 09The Toolkit Builders
  • 10Lessons from 3.8 Billion Years of R&D
  • 11Kiss the Ground
  • 12The 17 Goals
  • 13The Long Now

Topics covered

naturesustainability

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Slide outline
  1. 01Sustainability
  2. 02Brundtland's Definition
  3. 03Nine Limits, Six Crossed
  4. 04Take, Make, Waste → Cycle
  5. 05The Steepest Curve
  6. 06Farming the Doughnut
  7. 07The 15-Minute City
  8. 08Costa Rica's Power Grid
  9. 09The Toolkit Builders
  10. 10Lessons from 3.8 Billion Years of R&D
  11. 11Kiss the Ground
  12. 12The 17 Goals
  13. 13The Long Now
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Presentation Transcript

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Slide 01

Brundtland's Definition

  • FRAMING
  • "Sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs." — UN World Commission on Environment and Development, Our Common Future (1987), chaired by Norwegian Prime Minister Gro Harlem Brundtland.
  • "We do not inherit the earth from our ancestors; we borrow it from our children." — David Brower
Slide 02

Nine Limits, Six Crossed

  • PLANETARY BOUNDARIES
  • Johan Rockström and 28 co-authors at the Stockholm Resilience Centre defined nine "planetary boundaries" in 2009. As of the 2023 update, six have been crossed:
  • Climate change — CO₂ ≥426 ppm vs 350 boundary
  • Biosphere integrity — extinction rate 100x background
  • Land system change — forest cover <75% of original
  • Biogeochemical flows — N&P from fertilizers
  • Freshwater change — green & blue water
  • Novel entities — plastics, synthetic chemicals
  • Ocean acidification — close to threshold
  • Stratospheric ozone — recovering since Montreal Protocol
  • Atmospheric aerosols — regional
Slide 03

Take, Make, Waste → Cycle

  • CIRCULAR ECONOMY
  • The Ellen MacArthur Foundation popularized the framing: shift from a linear economy to one where biological and technical materials cycle indefinitely. Strategies: refuse, reduce, reuse, repair, refurbish, remanufacture, recycle — in roughly that order of value.
  • Cradle-to-cradle design (William McDonough, Michael Braungart, 2002) treats waste as nutrient — every output becomes another process's input.
Slide 04

The Steepest Curve

  • ENERGY
  • Solar PV cost has fallen 89% since 2010. Wind 70%. Battery storage 90%. The exponential learning curves underlying these (Wright's Law) accelerate with cumulative deployment. Forecasts have systematically lagged reality.
  • $0.03
  • Utility solar LCOE/kWh, 2024
  • 82%
  • Renewables share of new global capacity 2023
  • 18%
  • EV share of new car sales 2023
  • 3-5×
  • Heat pump efficiency vs gas furnace
  • Sources: IEA World Energy Outlook 2024; BloombergNEF; IRENA.
Slide 05

Farming the Doughnut

  • AGRICULTURE
  • Agriculture occupies ~50% of habitable land, uses 70% of freshwater, and produces ~22% of GHG emissions. The leverage points: shift to plant-rich diets, reduce food loss, restore soil carbon.
  • Regenerative agriculture — cover crops, no-till, rotational grazing, compost — builds soil organic matter (~0.4% per year achievable) while sequestering carbon. Researchers at Rodale Institute and Allan Savory's Holistic Management have field-tested these methods on 30+ years of plots.
  • Fertilizer (Haber-Bosch nitrogen) feeds half the world. Phosphorus is mined from finite Moroccan reserves and runs off into rivers, causing dead zones.
Slide 06

The 15-Minute City

  • CITIES
  • Carlos Moreno (Sorbonne, 2016) argued that everything you need — work, school, food, healthcare, parks — should be reachable within a 15-minute walk or bike ride. Anne Hidalgo, mayor of Paris, made it the basis of her 2020 reelection. Cities account for 70% of global emissions but only 3% of land area; they are the highest-leverage place to redesign.
  • Other models: Curitiba, Brazil (BRT pioneer, 1974, Jaime Lerner); Copenhagen (62% bike commute mode share); Singapore (90%+ public transport ridership); Freiburg (carbon-neutral Vauban district).
Slide 07

Costa Rica's Power Grid

  • CASE STUDY
  • For 300+ days a year, Costa Rica runs entirely on renewable electricity — hydropower, geothermal, wind, solar. In 2017 it ran 300 consecutive days without burning fossil fuels for power. The country eliminated its army in 1948 and used the savings on education and conservation. It is also the only country that has reversed deforestation while doubling GDP per capita. A small economy (~$70B), but a working proof.
Slide 08

The Toolkit Builders

  • PEOPLE
  • Kate Raworth — economist; Doughnut Economics (2017): operate between social floor and ecological ceiling.
  • Amory Lovins — Rocky Mountain Institute; soft energy paths since 1976.
  • Vandana Shiva — Indian physicist; seed sovereignty, agroecology critic of GMOs.
  • William McDonough — architect; cradle-to-cradle design.
  • Janine Benyus — biomimicry; "the rest of nature has already solved most of our problems."
  • Saul Griffith — engineer; Electrify (2021) — quantified rebuild of US energy system.
  • Hannah Ritchie — Our World in Data; Not the End of the World (2024).
Slide 09

Lessons from 3.8 Billion Years of R&D

  • BIOMIMICRY
  • Termite mounds inspired the passive cooling of Eastgate Centre (Mike Pearce, Harare, 1996) — 90% less HVAC energy than comparable buildings. Lotus leaves taught self-cleaning surface chemistry (Lotusan paint). Mussel-byssus-thread biochemistry led to non-toxic underwater adhesives at Purdue. The kingfisher's beak shape eliminated tunnel boom in the Japanese Shinkansen.
Slide 10

Kiss the Ground

  • WATCH
  • 2020 documentary on regenerative agriculture, narrated by Woody Harrelson. Features Allan Savory, Rattan Lal (soil carbon scientist), Gabe Brown (Bismarck farmer), and the science of building topsoil while growing food. Pairs with 2040 by Damon Gameau and The Biggest Little Farm.
  • → youtube.com/watch?v=K3-V1j-zMZw
Slide 11

The 17 Goals

  • SDGs
  • The UN Sustainable Development Goals (2015) succeeded the Millennium Development Goals — a planetary checklist running through 2030. They cover: poverty, hunger, health, education, gender equality, water, energy, work, infrastructure, inequality, cities, consumption, climate, oceans, land, peace, partnerships. Progress is mixed. As of the 2024 review, only 17% of the 169 specific targets are on track. Climate, biodiversity, and inequality goals lag most. Renewables, mortality, education access lead.
Slide 12

The Long Now

  • CODA
  • Stewart Brand's Whole Earth Catalog (1968) opened with the photograph "Earthrise," taken by Apollo 8's William Anders the previous Christmas Eve. A blue marble against the lunar gray. The image arguably did more for environmentalism than any policy. The Long Now Foundation, which Brand co-founded with Brian Eno, urges decision-making over centuries — building a 10,000-year clock inside a Texas mountain. Sustainability is the most demanding form of long-term thinking we have yet attempted as a species. The reward, if we manage it, is everything that makes a planet worth living on.
  • "We are as gods and might as well get good at it." — Stewart Brand, 1968
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