UK Climate Change Risk Assessment: Evidence Report Daniel Johns - - PowerPoint PPT Presentation

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UK Climate Change Risk Assessment: Evidence Report Daniel Johns - - PowerPoint PPT Presentation

UK Climate Change Risk Assessment: Evidence Report Daniel Johns Head of Adaptation Committee on Climate Change APSE Flooding & Climate Change seminar @theCCCuk 9 th February 2017 @DanielJ88 1 The Adaptation Sub-Committee of the


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UK Climate Change Risk Assessment: Evidence Report

Daniel Johns

Head of Adaptation Committee on Climate Change

APSE Flooding & Climate Change seminar 9th February 2017 @theCCCuk @DanielJ88

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The Adaptation Sub-Committee

  • f the Committee on Climate Change

Statutory roles in UK Climate Change Act (2008):

  • To provide independent, expert

advice on climate risks and

  • pportunities

(advisory role)

  • To report to Parliament on

progress in preparing for climate change (scrutiny role)

Baroness Brown of Cambridge (chair) Prof Dame Anne Johnson Sir Graham Wynne Ece Ozdemiroglu Rosalyn Schofield Prof Jim Hall

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2016 confirmed as the warmest year on record, the third record warmest year in a row

Source: Met Office, NASA, NOAA (‘pre-industrial’ baseline 1880-1899)

Global average surface temperature above pre-industrial

2014 2015 2016

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UK land and sea surface temperatures have warmed by ~1oC, record highs for both in 2014

Source: Met Office (2016) State of the UK Climate 2015

1oC

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Heavy rainfall is on the increase, particularly in western and northern UK areas

Number of days per year on which UK average rainfall exceeds 9.5mm (95th percentile) and 14mm (99th percentile)

Source: Met Office (2016) State of the UK Climate 2015

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UK average sea level has risen by 15cm since 1900

UK sea-level index using sea-level data from Aberdeen, North Shields, Sheerness, Newlyn and Liverpool 15cm

Source: Met Office (2016) State of the UK Climate 2015

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UK Climate Change Risk Assessment (in a nutshell) Climate change is happening here and its happening now The ~1oC warming to date has already affected weather patterns, including in the UK The Paris Agreement means 4-6oC

  • f warming is less likely

But further changes in the UK climate (and sea level rise) are inevitable Severe, pervasive and irreversible changes in climate cannot be ruled out

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Six priority areas for the next National Adaptation Programme

Source: ASC (2016) UK CCRA 2017 – Synthesis Report

RISK MAGNITUDE: NOW FUTURE

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“Once in a lifetime” floods in England since 2000

Southern and Northern England, Autumn 2000 Yalding, January 2003 Boscastle, August 2004 Carlisle, January 2005 Southern, Western and Northern England, Summer 2007 Morpeth, 2008 Cumbria, November 2009 Cornwall, November 2010 Across England, 2012 East coast tidal surge, December 2013 South-West & Southern England, Winter 2013/14 Northern England December 2015

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What should we do about it?

Actions with no/low regrets Factor climate change into decisions that create ‘lock-in’ Prepare now for long-term risks and impacts

Source: ASC (2016) UK CCRA 2017 – Chapter 2: Approach and context

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Actions with no/low regrets

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Avoiding ‘lock-in’ – decisions that are difficult and costly to reverse

Cockermouth, November 2009 Cockermouth, November 2009 Moorland, Somerset Levels, 2014 Proportion of new addresses in Flood Zone 3

2013/14 2014/15 2015/16 7.5% 5% 10% 2.5% 0%

Source: DCLG (2016)

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14 Cockermouth, November 2009 Mcilmoyle Way, Carlisle – flood wall, raised floor levels, ground floor used for parking

Avoiding ‘lock-in’ – decisions that are difficult and costly to reverse

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Preparing now for long-term risks and impacts

Dawlish, winter 2013 Fairbourne, North Wales

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Preparing now for long-term risks and impacts

Source: Flood Re (2016) The first Flood Re transition plan £180m / yr

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UK CCRA 2017: flooding and coastal change The impacts of flooding and coastal change in the UK are already significant and expected to increase as a result of climate change

– Improving protection for some communities will be possible whilst

  • thers will face the prospect of significantly increased risks.

– This will affect property values, business revenues and in extreme cases the viability of communities. – Risks to communities and local economies are closely linked to the resilience of local infrastructure, in particular energy, transportation and communications systems. – Warming of 4oC or more implies inevitable increases in flood risk across all UK regions even in the most ambitious adaptation scenarios considered.

Source: ASC (2016) UK CCRA 2017 – Synthesis Report

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Adaptation Sub-Committee

www.theccc.org.uk

Email: daniel.johns@theccc.gsi.gov.uk @theCCCuk @DanielJ88