Blue-Green Perspectives: Adapting to Climate Change Impacts – NOW! Dr. Darren Woolf bluegreenuk.com / Thames Blue Green Economy BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time for a Blue Green London Plan Blue Green = Climate change resilience for city living 21 st Century natural climate solutions integrated into the built environment INSERT TITLE VIA FOOTER MENU BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time for a SMART Plan INSERT TITLE VIA FOOTER MENU BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time to declare… BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time to declare… Tree in London Starting 23 rd Nov ‘170,000 trees planted in just three years’ 30,000 free trees by ballot – 11 th Nov deadline https://www.london.gov.uk/press-releases/mayoral/national-park-city INSERT TITLE VIA FOOTER MENU https://www.newhamrecorder.co.uk/news/free-trees-given-away-to-londoners-1-6303808 BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time to declare… Trees in England ‘Government manifesto commitment to plant one million urban trees by 2022’ ‘20,000 large trees and 110,000 small trees in urban areas in England’ 50% fund matching scheme Pledge from the government of £50m for 10m new rural trees by 2022 "A lot more trees should be planted", supported by 88% of the UK public in 2019 (Forestry Commission) https://www.theguardian.com/environment/2019/jun/13/tree-planting-in-england-falls-72-short-of-government-target https://www.gov.uk/government/news/government-delivers-new-10m-fund-to-plant-over-130000-urban-trees https://www.forestresearch.gov.uk/tools-and-resources/statistics/forestry-statistics/ BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW https://www.gov.uk/guidance/urban-tree-challenge-fund
Time for world-leading ambition LOCATION TARGET YEAR / PERIOD London 225,000 (170k+55k) Q1 2021 Urban England 130,000 2022 England 10,000,000 2022 Sydney 5,000,000 2030 Ethiopia 353,000,000 One day 4,000,000,000 6 months New Zealand 1,000,000,000 2028 Pakistan 10,000,000,000 5 years https://twitter.com/plant4pak?lang=en https://www.teururakau.govt.nz/funding-and-programmes/forestry/one-billion-trees-programme/ https://news.yahoo.com/ethiopian-government-plants-353-million-231226927.html https://architectureau.com/articles/nsw-government-to-plant-5-million-new-trees-across-sydney/ BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time for clean air The Mayor of London, Sadiq Khan said: “London’s filthy air is a public health crisis that leads to thousands of premature deaths in the capital every year as well as stunting the development of young lungs and increasing the number of cases of respiratory illness.” INSERT TITLE VIA FOOTER MENU https://www.london.gov.uk/press-releases/mayoral/first-breathe-london-data-published BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time for clean air • 90% of the world’s urban population living in cities exceeding its air quality guidelines • In UK each year, contributes to roughly 40,000 deaths • Costs city-regions over £20bn • 2040 petrol / diesel vehicle sale ban • Gaseous emissions (e.g. NO 2 ) down • Particulate emissions (tyres, brakes, road wear) same or up Birmingham Institute of Forest Research (article 04/10/19) https://airqualitynews.com/2019/10/04/why-green-infrastructure-is-critical-for-improving-air-quality/ INSERT TITLE VIA FOOTER MENU BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time for clean air Ultra Low Gaseous Emissions Zone BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time for clean air • Includes solution for particulate matter • Exposure down through • local designs for trees and vegetation barriers • encouraging ‘distance from source’ • greater dispersion by wind https://www.london.gov.uk/WHAT-WE-DO/environment/environment- publications/using-green-infrastructure-protect-people-air-pollution BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time to keep cool Urban heat island effect in London 2003 heatwave: • Central London areas up to 10°C higher than surrounding greenbelt • In France, almost 15,000 attributable deaths (19x global SARS epidemic) • July 2018: St James Park similar temperatures to 2050 medium emissions projections • UK heat-related deaths increase from 2000/yr now to 7000/yr in 2050 • Urban greenspace in England has dropped from 63% to 55% since 2001 • https://www.cibse.org/knowledge/knowledge-items/detail?id=a0q20000008I6zx https://www.newscientist.com/article/dn4259-the-2003-european-heatwave-caused-35000-deaths/ BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW https://www.theccc.org.uk/publication/uk-housing-fit-for-the-future/
Time to keep cool or ? Areas with many trees were as More energy / CO2 • much as 4°C cooler as places in More heat rejection • the same city without vegetation https://www.telegraph.co.uk/news/2019/09/26/trees-could-replace-air-con-buildings-around-trees-cooler-study/ BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time to resurface London Before After Blue green roofs: Stormwater attenuation: Up to 8 hours storage for heavy rain, peak run- • off reduced by up to 85% or more – depends on design and storm event Reduced urban heat island effect • Increase in biodiversity • Increased solar panel efficiency • https://www.cibse.org/knowledge/knowledge- items/detail?id=a0q20000008I6zx BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time to resurface London 23°C 66° C Potential to avoid the need for HVAC systems and associated heat rejection into • the environment (contribution to heat island effect) Current green roof coverage only 175,000m 2 out of estimated possible • 10,000,000m 2 within 6km of Trafalgar Square Increased insulation levels: winter heat loss 20% less, summer heat gains 60% less • https://www.cibse.org/knowledge/knowledge-items/detail?id=a0q20000008I6zx https://livingroofs.org/ https://www.london.gov.uk/what-we-do/environment/parks-green-spaces-and-biodiversity/green-roof-map BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time to resurface London Guide for new developments (retrofit as well?) Air quality / stormwater / urban heat island / urban noise https://www.standard.co.uk/news/uk/pioneering-living-wall-could-reduce-air-pollution-by-a-fifth-a3382896.html BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time to resurface London Stormwater attenuation: Most streets in London are local and can be made less traffic-dominated • Tree-lined streets can reduce stormwater run-off by up to 80% • Permeable asphalt allows water to infiltrate (no ponding for cyclists) • BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time to resurface London Porous asphalt: Colonised by micro-organisms remediating up to 70% of contaminants • Particulate matter washed away (not lifted into the air by wheels and wind) • BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time to resurface London A 21 st Century integrated ‘new’ building design solution BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time to plan holistically with symbiotic gearing Flawed? Bottom-up vs top-down. States ‘Carry out interdependency mapping in 2019 across sectors and identify opportunities for collaboration’ https://www.london.gov.uk › what -we- do › london-environment-strategy BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time to listen, learn and lead US: Green New Deal (economics/jobs) Singapore, China, Philadelphia Australia, India: UK: (Green Streets / Water sensitive World-leading Integrated Water cities Blue Green R&D Resource Management) Germany: Green roofs BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW INSERT TITLE VIA FOOTER MENU
Q: River Thames in London – dirty or clean? BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
• Declared biologically dead in 1957 • Now cleanest for 150 years https://www.mylondon.news/news/zone-1-news/river-thames-one-cleanest-rivers-16568811 BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
Time to tell the truth Independent science (funding checks to determine balance) Balanced reporting (equal weighting for the alternative views backed by the independent science) BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW
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