This is a summary of the complex energy systems that power the city – there is no one single system but a carefully chosen combination ranging from waste to power pyrolosis, solar thermal and electric cells,and absorbtion dessicant cooling
Transcript of "Dubai pp 30 min"
Regenerative Cities in the Gulf? Herbert Girardet,World Future Council
Presentation Outline 1. A sustainable history 2. Modern cities and fossil fuels• Fossil fuels and urban growth• Cities and the climate crisis• The global footprints of cities• The water crisis in the Gulf region 3. Sustainable or regenerative urbanisation?• Towards “Ecopolis“• The renewable energy revolution• Food and cities• Towards a circular metabolism• Creating the regenerative city
The age of the city• From 1900 to 2000 human numbers increased four fold – from 1.5 to 6 billion• The global urban population grew 13 fold to 2.9 billion, nearly 50 % of the world population• By 2030, 60% of the world population, or 4.9 billion people, are expected to live in urban areas, 3 times more than the world’s entire population in 1900• Cities, on 3-4% of the world’s land surface use 80% of its resources, and discharge most solid, liquid and gaseous waste
C02 emissionsQatar has the highest C02 emissions- 49.1 metric tons per person/year.Kuwait with 30.1 tons is secondhighest, closely followed by UnitedArab Emirates with 25.5 and Bahrainwith 21.3 tons, Oman with 17.3 andSaudi Arabia with 16.6 tons.
1 1 2 Dubai 2020 Dubai today0 0 Industry Dubai: CO2 Emissions Industry Road transport Freight Transport20 20 Road transport Sea Transport Air Transport Refrigerants Waste Freight Transport Water Sea Transport40 40 Buildings Air Transport 44,000,000tCO2/year60 Refrigerants 60 Waste Water80 80 97,000,000tCO2/year Buildings100
Resource + Carbon Intensity of our Economies Europe US + UAE
Adelaide 2012• Over 20% of renewable electricity, 40% by 2020• 120,000 PV roofs (of 600,000 houses) = 250 mw• 20,000 ha of peri-urban horticulture• Recyled waste water used in crop irrigation• Nearly 100% composting of organic waste• Water sensitive development• 60% carbon reduction by municipal buildings• 1000s of new green jobs• Nearly 3 million trees planted on 2000 ha•
Renewable energy• Renewable energy technology has matured and is becoming cost competitive• The ‚solar income‘ of the world is 15,000 greater than current daily energy use• The Gulf region has 7,000 watts of solar energy income per square metre in 12 hours, more than most regions of the planet• Solar energy could generate sustainable energy supplies for the Gulf as well as huge export revenues••
Regenerative urbanisation as organising principle• Cities need to take responsibility for their eco-footprints• National policies for regenerative urbanisation• RE supply from the urban territory and hinterland• “Circular metabolism”: Turning waste into a resource• Policies to enhance compact urban development• Support for zero carbon transportation• Composting bio-wastes for peri-urban food production• Support for large scale “out of town“ tree planting• Support for ecosystem protection and restoration••
Can the Gulf take the lead in RU?• The funds are available• Solar resource in abundance• Research already underway at Gulf un iversities• Examples already in place: Masdar, etc.•
Books and Reports- Creating a sustainable Adelaide, 2003- Cities People Planet – Liveable Cities for a SustainableWorld, Wiley, 2004 und 2008- A Renewable World, Green Books, 2009- 100% Renewable Energy For Cities, 2009- Regenerative Cities, 2010 www.worldfuturecouncil.org
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