Session VII SUSTAINABLE DESIGN FOR THE FUTURE MEETING THE 2050 CHALLENGE Mahadev Raman Director for Social Infrastructure, Arup

Mahadev Raman November 6 th, 2009 Mahadev Raman November 6 th, 2009 MEETING THE 2050 CHALLENGE

. Courtesy of Science Photolibrary Our Environment

Buildings in the US emit 9% of global CO 2 That is 2337m metric tons per year Emissions have been growing rapidly

DomesticIndustrial BuildingsCommercial OfficesCommunication & Transport EducationGovernmentHealthHotel and Catering OtherRetailSport and LeisureWarehouse NOW Built environment contribution to UK greenhouse gas emissions Carbon Dioxide Emissions

Seattle’s 2007 greenhouse gas reduction plan: 7% below 1990 levels by % below 1990 levels by % below 1990 levels by 2050

By 2050: Population growth from 306m to 438m 40% increase in building stock 70% of current buildings still in use Current buildings are 50% of the stock

What we need to do: New buildings consume 15% of current use That means 70% below current code Existing buildings 50% below current use That means massive investment!

Beddington Zero Energy Development, United Kingdom Beddington Zero Energy Development - BedZed

California Academy of Sciences

Syracuse Center of Excellence

Destiny, Florida, USA Destiny Florida

Destiny, Florida, USA Carbon Reduction Strategies

Renewable Energy: 300GW of new capacity by 2050 That is 200sf of PV on 120m dwellings 7.5GW/yr for buildings, 15GW/yr total Currently 5.5GW/yr – 90% wind energy

©Frank van Mierlo Consumption 15 TW Wind 370 TW Solar 89,000 TW Renewable Energy Abundance