The Challenges of Unsustainable Growth http://gapminder.org/ José L. Fernández-Solís Modules 04 & 05 Green Infrastructure and Sustainable Communities XX-1 On Technology / Sobre la tecnología “The essence of modern technology starts human beings upon the way of THAT revealing through which reality everywhere, more or less distinctly, becomes resource” Heidegger (1954) “toda realidad se converte en recurso” A new Paradigm: Numbers and Time / un nuevo paradigma: números y tiempo Very Large Numbers Billions Millions Thousands Years Decades Centuries Long Tern Horizon Forces Behind Construction / las fuerzas detrás de la construcción POPULATION 20.0 AFFLUENCE ? 10.0 5.0 tc= 35 approx 6.5 B / 2005 2.5 year Population Dynamics Theoretical scenario of population demographics moving from needs to wants Exponentials http://www.gapminder.org/downloads/presentations/ Growth in Income, Population and Technology / crecimiento en entradas, poblacion y technologia Growth in incomes was accompanied by unprecedented increases in population and exponential increases in the rate of scientifi c discoveries. 6,000 6,000 5,000 5,000 PCs 4,000 4,000 discovery of DNA penicillin populations (millions) Population (Millions) nuclear energy 3,000 3,000 2,000 2,000 1,000 invention of automobile invention of telephone electrification germ theory beginning of railroads invention of Watt engine beginning of industrial revolution beginning of 2nd agricultural revolution 1,000 0 time (years) So u r ce: Fogel, Robert. 1999. “Catching Up with the Economy.” Am erican Eco n o m ic Review 89(1) (March): 1–21. No t e: There is usually a lag between the invention of a process or a machine and its general application to production. “Beginning” means the earliest stage of this diffusion process. Sustainability and Exponential Growth / Sostenibilidad y el crecimiento exponencial Exponentialoid Unsustainable Growth to be restrained by Artificial sustainability forces Natural Sustainability -Negated by human intervention Natural Sustainability – restrained growth 1000 800 600 400 300 200 Figura 1. China Construction Floor Space Thompson Datastream FT 5/31/08 2010 2007 2005 2000 100 1996 Millions of square meters per year China Construction Activity Growth / actividad de la construcción en la China tc = doubling times / tiempo para duplicar • Exponential growth: – Population – Affluence (tc = 35 yrs) (tc = 10 – 15 yrs) • Air passengers (Boeing, 07) triple by 2030 • Container shipment (International, 06) double in 10 yrs. – Construction in general (as of 2006) • Global trends (tc = 15 yrs) • USA trends (tc = 25 yrs) – Resource consumption (tc = 7 yrs) – Total Emissions generation (tc = 1 yrs) Per Capita Consumption (2003) / consumo de electricidad por capita (Approx. population) / kilowatt hour • USA (300M) 14,057.0 kWh (1.0) • France 7,585.5 kWh (0.5) • Germany 6,900.0 kWh (0.4) • China (1,600M) 1,378.5 kWh (0.1) • Bangladesh 594.0 kWh (0.05) http://www.gapminder.org/ Human development trends/carbon Dioxide/Population/Size carbon dioxide/select Affluence: Evolution of Global GDP and Per Capita GDP GDP per capita ($,000) GDP levels ($,000 Billions) 1990 international PPP dollars A.D. 1 1000 1500 1600 1700 1820 1900 1950 2000 per capita GDP Source: Data from: Maddison, Angus. 2001. The World Economy: A Millennial Perspective. Paris: OECD. 1200 1000 Bmt 800 depletion 600 reserve 400 200 2069 2064 2059 2054 2049 2044 2039 2034 2029 2024 2019 2014 2009 2004 0 Year Copper Copper Consumption and Depletion 3.0000 2.5000 Bmt 2.0000 depletion 1.5000 reserve 1.0000 0.5000 20 04 20 06 20 08 20 10 20 12 20 14 20 16 20 18 20 20 20 22 20 24 20 26 20 28 20 30 20 32 20 34 0.0000 Year Aluminum Consumption and Depletion Aluminum 80 70 60 50 40 30 20 10 0 consumption recovery depletion Year Theoretical consumption and depletion of resources 2068 2064 2060 2056 2052 2048 2044 2040 2036 2032 2028 2024 2020 2016 2012 2008 reserve 2004 Bmt Resource Consumption / el consumo de recursos Consumtion and Depletion of Crude Iron Ore Crude Iron Ore Re-cap / re-capitulación • The forces behind construction are related to exponential growth in: – Population – Affluence • Construction exponential growth are related to exponential growth in: – Resource consumption – Emissions generation Emissions Data / data de emisiones • China, added electrical power capacity – 2004 of England (one coal plant/2 weeks) – 2005 of Spain (one coal plant/1.5 weeks) – 2006 of France (one coal plant/ week) – 2007 of Germany ( 1.5 coal plants / week) – Now China is exporting quick coal plant construction to India Emissions Data / data de emisiones • To eliminate global emissions from current and future power generation needs alone, we need – Approximately, one nuclear power plant every week from now until the end of 2070 (FT). – IEA (International Energy Agency 6/6/08: • 32 nuclear power plants yearly • 17,500 wind turbines yearly • Outfit 35 coal fired power stations with carbon capture and storage equipment yearly 5 6 7 8 9 10 11 12 Pacala and Socolow 2007, Stabilization Wedges: Solving the Climate Problem for the Next 50 Years with Current Technologies Wedges (1 billion tons of carbon each) Min. 12 Fossil Fuel Emissions Generation 1 2 3 / Emisión de Gases 4 Emissions Generation / concentraciónes atmosférica 420 400 Degree of climate change What is happening up to now – Land Figure TS.20. (Top) Records of Northern Hemisphere temperature variation during the last 1300 years with 12 reconstructions using multiple climate proxy records shown in colour and instrumental records shown in black. (Middle and Bottom) Locations of temperature-sensitive proxy records with data back to AD 1000 and AD 1500 (tree rings: brown triangles; boreholes: black circles; ice core/ice boreholes: blue stars; other records including low-resolution records: purple squares). Data sources are given in Table 6.1, Figure 6.10 and are discussed in Chapter 6. {Figures 6.10 and 6.11} Source : Intergovernmental Panel on Climate Change. IPCC Fourth Assessment Report WGI wg1.ucar.edu/ http://ipcc- Degree of climate change What is happening up to now – Potential Precipitation Figure TS.8 Rainfall is increasing Degree of climate change What is happening up to now -- Precipitation http://ipcc-wg1.ucar.edu/wg1/Figures/AR4WG1_Ch03Figs_2007-10-23.ppt#269,14,Figure 3.13 Texas has areas that had largest decrease in continental US Degree of climate change What is happening up to now -- Precipitation Rainfall became more concentrated and Texas again has such areas http://ipcc-wg1.ucar.edu/wg1/Figures/AR4WG1_Ch03-Figs_2007-10-23.ppt#296,40,Figure 3.39 Degree of climate change What is happening up to now -- Drought Palmer drought index change 1900-2002, Regional map and graph of global average Texas shows lesser index Did not graph last 20 years http://ipcc-wg1.ucar.edu/wg1/Figures/AR4WG1_Ch03-Figs_2007-10-23.ppt#300,44,FAQ 3.2, Figure 1 Degree of climate change What is happening up to now – Hurricanes Figure TS.11. Tropical Atlantic (10°N–20°N) sea surface temperature annual anomalies (°C) in the region of Atlantic hurricane formation, relative to the 1961 to 1990 mean. Source : Intergovernmental Panel on Climate Change. IPCC Fourth Assessment Report WGI http://ipcc-wg1.ucar.edu/ Degree of climate change What is happening up to now -- Other Available observational evidence indicates that regional changes in climate, particularly increases in temperature, have already affected a diverse set of physical and biological systems in many parts of the world. Observed changes include Shrinkage of glaciers and sea ice Snow cover has decreased Thawing of permafrost, Later freezing and earlier break-up of ice on lakes/rivers Lengthening of mid- to high-latitude growing seasons Poleward and altitudinal shifts of plant and animal ranges, Declines of some plant and animal populations, Earlier flowering of trees, emergence of insects, and egg-laying in birds Global average sea level has risen and ocean heat content has increased Degree of climate change - why is this happening IPCC (1995) “The balance of evidence suggests a discernible human influence on global climate.” IPCC (2001) “Most of the warming of the past 50 years is likely (>66%) to be attributable to human activities.” IPCC (2007) ”Most of the observed increase in global average temperatures since the mid-20th century is very likely (>90%) due to the observed increase in anthropogenic (human emission caused) greenhouse gas concentrations.” Degree of climate change - why is this happening Some gases, like carbon dioxide (CO), trap heat in the atmosphere by absorbing longwave radiation while letting the Sun's energy pass through. The transparent roof and walls of a greenhouse allow in the sunlight while keeping in the heat. Since these gases act similarly in the atmosphere, we call them greenhouse gases. Source : U.S. National Assessment/ http://www.usgcrp.gov/usgcrp/Library/nationalassessment/images/Greenhouse-s.jpg. Degree of climate change / cambio de clima Pre industrial 1985 2007 - 275 - 345 - 380+ Counting Non CO2 this is increase almost doubles http://www.esrl.noaa.gov/gmd/ccgg/trends/co2_data_mlo.html Degree of climate change What is happening up to now – Temperature since 1979 Rates of change accelerating as time progresses (colored lines) Texas in a relatively rapidly warming area within continental US http://ipcc-wg1.ucar.edu/wg1/Figures/AR4WG1_Ch03-Figs_2007-10-23.ppt#299,43,FAQ 3.1, Figure 1 Degree of climate change What is happening up to now – Ocean Temp. Figure TS.16 Ocean also shows temperature increase Source : Intergovernmental Panel on Climate Change. IPCC Fourth Assessment Report WGI http://ipcc-wg1.ucar.edu/ Temperature, Atmospheric CO2 and Peak Year Estimate / temperatura, CO2 atmosférica y estimado de año máximo Mean stabilized temp. increase above pre industrial level, ºC / Temperatura en Centígrados 2.0 to 2.8 2.8 to 3.2 3.2 to 4.0 4.0 to 6.1 Atmospheric CO2 equivalent concentrations (ppm) 445 to 535 535 to 590 590 to 710 710 to 1130 2020 to 2060 2080 to 2090 Latest year in which CO2 2015 to 2020 2010 to 2030 emissions must peak / Año Annual Greenhouse Gas Emission by Sector CO2 and Temperature Stabilization Degree of climate change What is happening up to now -- Other Source : Intergovernmental Panel on Climate Change. IPCC Fourth Assessment Report WGI http://ipcc-wg1.ucar.edu/ Why is this happening / ¿Porque esta pasando? CO2 and temperature linked but does not lead http://www.whrc.org/resources/online_publications/warming_earth/scientific_evidence.htm Degree of climate change - What is projected • Less water Texas in relatively severely affected area Data / Indicadores de ¿ porque esta pasando? Degree of climate change - What is projected • Very likely that heat waves will be more intense, more frequent and longer lasting • Precipitation generally increases but with general decreases in the subtropics • Precipitation intensity is projected to increase but there would be longer periods between rainfall events. • Tendency for drying of mid-continent during summer, indicating a greater risk of droughts in those regions. • Sea level projected to rise 1999 and 2099 by 0.18 to 0.59 m. • Likely increase in hurricane peak wind intensities - an increase in the numbers of the most intense. • Fewer mid-latitude storms- poleward shift of storm tracks • Atlantic Ocean Meridional Overturning Circulation (MOC) – Gulf Stream will slow down Building demand: 1 DU/6 persons 1 Other/6 persons and Depletion of Crude Iron Ore CrudeConsumtion Iron Ore 1200 1000 Bmt 800 depletion 600 reserve From: From Fig. 4.3 3.7 Fig. & 3.8 & 4.4 400 POPULATION AFFLUENCE 200 CO2 Ratios: Buildings 40% Others 60% 2069 2064 2059 2054 2049 2044 2039 2034 2029 2024 2019 2014 2009 2004 0 Year Copper Consumption and Depletion Copper 3.0000 2.5000 Bmt 2.0000 depletion 1.5000 reserve 1.0000 28,000 Demand Loop / Circulo de demanda 0.5000 20 04 20 06 20 08 20 10 20 12 20 14 20 16 20 18 20 20 20 22 20 24 20 26 20 28 20 30 20 32 20 34 0.0000 Year 20,000 t c = 1 year actual consumption recovery depletion 2068 2064 2060 2056 2052 2048 2044 2040 2036 2032 2028 2024 2020 2016 2012 2008 reserve 2004 Bmt Aluminum Consumption and Depletion Aluminum 80 70 60 50 40 30 20 10 0 Year Theoretical consumption and depletion of resources Theoretical Resource Consumption/Depletion 10,000 Environment Additional Building demand: 1 DU/6 persons 1 Other/6 persons Legend Interacts with Influence Partially Determine Results Climate Change Catastrophes 2004: 395 disasters 244,500 deaths 157 M affected Etc. t c = 30 years estimated 2005 Global Carbon Emissions from Fossil Fuel Burning 1750 - 2005 Fig. 4.5 3.9 World-view: Worldview: Building Demand and Emissions, Fig. Building Demand and Resource Consumption, Climate Change Emissions, Resource Consumption, Climate Change EoI exponential growth Elements that influence exponential growth Global Estimates Global Population Population Estimates 20% Ratios 80% 80% Ratios 20% 5 10 % Migration 5 - 10 % Migration Needs Wants Needs Wants 20% Consumption 80% 20% Consumption 80% Nt + x S = 1/Nt er (t+x) Nt Item N N = No er t No Time t t+x Fig. 8. Sustainability as the inverse of an exponentialoid curve First time technology Other than first time technology Resource Consumption and Emissions Generation Legend Interacts with Influence Partially Determine Results Fig. 3.10 Elements of Industrial change and exponentialoid growth What is projected / Projecciones Climate models predict increasing emissions will cause a temp increase Source : IPCC AR4t Taming the Exponentialoid / domando la exponencial C A Nt + x S = 1/Nt er (t+x) Nt B Item N N = No er t No Time t t+x Fig. 8. Sustainability as the inverse of an exponentialoid curve A New Design Paradigm What happens when we do something in extremely large number? Quantity = Magnitude Extremely large numbers i.e. billions ≈ ∞ What happens when we do something for an indefinite period of time? Long term horizon i.e. hundreds of years ≈ ∞ Time Line = Direction Can we increase numbers indefinitely and for an indefinite time? Framework of Assumptions and Facts shared between the Artificial and Natural Worlds Fact Assumption Energy Natural World Assumption Capital Artificial World Need: A common currency Yesterday: Independent resources waste INDEPENDENT Today: Grid resources waste GRID DEPENDENT Future: Hybrid Rebates Photo-voltaic Subsidies Hydrogen power generation Carbon Trading Schemes Bio-gas Day Night waste & resources waste & resources HYBRID From Independent to Grid to Hybrid Option 1 Option 2 Option 2 small numbers / very large scale Small Numbers waste & resources waste & resources Option 1 small scale / very large numbers Very Large Numbers Small Scale Very Large Scales HYBRID The Car Paradigm New Paradigm? Situation / el principio precaucionario “Situations in life often permit no delay; and when we cannot determine the method which is certainly best, we must follow the one which is probably the best… if the method selected is not indeed a good one, at last the reasons for selecting it are excellent.” Rene Descartes quoted by Koen, 2003, “Discussion of THE method,” all-is-heuristics Q&A/ conclusiones, preguntas y respuestas Our current form of economic development is not sustainable This situation will likely reach crisis proportions in 10-20 years Issues of sustainability are changing the way business and government operate What needs to change to tame exponential growth?