Blue-Green Perspectives: Adapting to Climate Change Impacts NOW! - - PowerPoint PPT Presentation

BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW

Blue-Green Perspectives: Adapting to Climate Change Impacts – NOW!

• Dr. Darren Woolf

bluegreenuk.com / Thames Blue Green Economy

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Time for a Blue Green London Plan

Blue Green = Climate change resilience for city living 21st Century natural climate solutions integrated into the built environment

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Time for a SMART Plan

BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW

Time to declare…

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https://www.newhamrecorder.co.uk/news/free-trees-given-away-to-londoners-1-6303808

Starting 23rd Nov

Time to declare… Tree in London

‘170,000 trees planted in just three years’

https://www.london.gov.uk/press-releases/mayoral/national-park-city

30,000 free trees by ballot – 11th Nov deadline

BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW

https://www.gov.uk/government/news/government-delivers-new-10m-fund-to-plant-over-130000-urban-trees

‘20,000 large trees and 110,000 small trees in urban areas in England’

Time to declare… Trees in England

‘Government manifesto commitment to plant one million urban trees by 2022’ 50% fund matching scheme

https://www.gov.uk/guidance/urban-tree-challenge-fund

"A lot more trees should be planted", supported by 88% of the UK public in 2019 (Forestry Commission)

https://www.forestresearch.gov.uk/tools-and-resources/statistics/forestry-statistics/ https://www.theguardian.com/environment/2019/jun/13/tree-planting-in-england-falls-72-short-of-government-target

Pledge from the government of £50m for 10m new rural trees by 2022

BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW

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 4,000,000,000 One day 6 months New Zealand 1,000,000,000 2028 Pakistan 10,000,000,000 5 years

https://architectureau.com/articles/nsw-government-to-plant-5-million-new-trees-across-sydney/

https://news.yahoo.com/ethiopian-government-plants-353-million-231226927.html https://www.teururakau.govt.nz/funding-and-programmes/forestry/one-billion-trees-programme/ https://twitter.com/plant4pak?lang=en

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https://www.london.gov.uk/press-releases/mayoral/first-breathe-london-data-published

The Mayor of London, Sadiq Khan said: “London’s filthy air is a public health crisis that leads to thousands

• f 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.”

Time for clean air

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https://airqualitynews.com/2019/10/04/why-green-infrastructure-is-critical-for-improving-air-quality/

• 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. NO2) down
• Particulate emissions (tyres, brakes, road

wear) same or up Birmingham Institute of Forest Research (article 04/10/19)

Time for clean air

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

• Includes solution for particulate

matter

• Exposure down through
• local designs for trees and

vegetation barriers

• encouraging ‘distance from

source’

• greater dispersion by wind

Time for clean air

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

• 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

Time to keep cool

https://www.theccc.org.uk/publication/uk-housing-fit-for-the-future/

Urban heat island effect in London

https://www.newscientist.com/article/dn4259-the-2003-european-heatwave-caused-35000-deaths/ https://www.cibse.org/knowledge/knowledge-items/detail?id=a0q20000008I6zx

BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW

https://www.telegraph.co.uk/news/2019/09/26/trees-could-replace-air-con-buildings-around-trees-cooler-study/

Areas with many trees were as much as 4°C cooler as places in the same city without vegetation

Time to keep cool

• r

?

• More energy / CO2
• More heat rejection

BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW

Time to resurface London

Blue green roofs:

• Stormwater attenuation: Up to 8 hours storage for heavy rain, peak run-
• ff 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

Before After

https://www.cibse.org/knowledge/knowledge- items/detail?id=a0q20000008I6zx

BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW

66° C 23°C Time to resurface London

• 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 175,000m2 out of estimated possible

10,000,000m2 within 6km of Trafalgar Square

• Increased insulation levels: winter heat loss 20% less, summer heat gains 60% less

https://www.london.gov.uk/what-we-do/environment/parks-green-spaces-and-biodiversity/green-roof-map https://livingroofs.org/ 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 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

Guide for new developments (retrofit as well?)

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 21st 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

• pportunities for collaboration’

https://www.london.gov.uk › what-we-do › london-environment-strategy

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US: Green New Deal (economics/jobs) Philadelphia (Green Streets / Integrated Water Resource Management) Germany: Green roofs Singapore, China, Australia, India: Water sensitive cities

Time to listen, learn and lead

UK: World-leading Blue Green R&D

BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW

Q: River Thames in London – dirty or clean?

BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW

https://www.mylondon.news/news/zone-1-news/river-thames-one-cleanest-rivers-16568811

• Declared biologically dead in 1957
• Now cleanest for 150 years

BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW

Independent science (funding checks to determine balance) Balanced reporting (equal weighting for the alternative views backed by the independent science)

Time to tell the truth

BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW

1. Reduce air temperatures by up to 4°C by 2035 2. Reduce stormwater run-off by up to 80% by 2035 3. Reduce gaseous emissions (ULGEZ) target timeline by 10 years 4. Reduce particulate emissions at street level by 60% by 2030 5. GLA/TfL ban on using non-porous hard surfaces by 2022 (cycle superhighway by Q2 2020) 6. Integrated Water Resource Management (IWRM) for London and Thames Basin by 2022 [TBGE ‘Case for’ document on bluegreenuk.com website] 7. Revise accounting system (cost-benefit) extending to mental health, child lung growth plus many other areas by COP26 8. Blue Green Commissioner for London (ASAP)

Time to convert SMART ideas into a SMART plan

• Wide range of progressive experts in same room to define SMART goals

(target specified by London borough?)

BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW

Time to listen to the headlines

https://www.forbes.com/sites/danielaraya/2019/10/08/the-green-new-deal-jeremy- rifkin-and-the-coming-collapse/#3f57ffe64053 https://www.wired.co.uk/article/mariana-mazzucato

BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW

• UK Government has generated a SMART

Plan and declares London on the road to becoming the World’s First Blue Green City!

• New blue green industry jobs gearing up to

provide stability to the economy. Time to generate new headlines

UK and Italy host crucial COP26 UN climate summit: Nov 2020

BLUE -GREEN PERSPECTIVES: ADAPT I NG TO CLIMATE CHANGE IMPACTS - NOW

• UK Government declares all UK cities blue green

and 100% of London buildings naturally ventilated.

• UN declares 50% of global cities blue green.
• Asset values, healthiness and productivity in blue

green cities double that of non-blue green. Time to generate new headlines

UK host COP56 UN climate summit: Nov 2050

https://www.sunrisemovement.org/green-new-deal

Thank you.