Transcript Climate Change in Southern Africa

Climate Change in Southern Africa –
selected impacts, responses and the road to
Copenhagen
Dr Emma Archer (www.csir.co.za/nre) & Dr Mark Tadross (www.csag.uct.ac.za)
Introduction
• Comments - climate change explained and observed
• Then look at the projections for Southern Africa;
• Thinking around adaptation and response
• The road to Copenhagen, and strategies in South Africa
and SADC; Nairobi Declaration (May-June 2009)
• Chris: climate change implications for the water sector
(example of vulnerable sector; others include health, human settlements, disaster
management, biodiversity & ecosystem services, agriculture, marine and coastal)
The greenhouse effect
Source: Adapted in part from IPCC. 1990. Climate change: The IPCC scientific assessment.
Houghton, Jenkins, and Ephraums, eds. Cambridge, UK: Cambridge University Press, pp. xiv.
• Greenhouse gases ~ act like panes of glass in a greenhouse
– Allow short wave energy to pass through them
– Trap longer-wave heat radiation that is radiated back to the atmosphere
from the earth’s surface (changes to atmosphere – radiative forcing)
So far – collective picture of a
warming world
IPCC AR4
WG1
•
•
Global average surface temperature has increased over 20th century by about 0.6
C
Climate change already occurring – e.g. temp raises in parts of SADC
• What of the future?
Southern Africa predictions temperature
• ‘All of Africa is likely to warm during this
century’ (IPCC WG1, 2007, Ch 11, pg 866)
– Warming likely > global annual mean warming
throughout the continent and in all seasons
– Drier subtropical regions warming more than
moister tropics
Significant hydrological changes
June-July-August
December-January-February
Based on regional studies assessed in IPCC Chapter 11
Precip increase in > 90% of simulations
Precip increase in > 66% simulations
IPCC AR4
WG1,
Christensen
et al
Precip decrease in > 66% of simulations
Precip decrease in > 90% of simulations
Precip decrease likely
Precip increase likely
Sectors vulnerable to
climate risk 
Priorities in impacts & adaptation
• The flaws of a sectoral approach … multi-sector strategies (e.g. intradepartmental coordination on water-health-livelihoods link in both
causation and adaptation strategies)
• Acknowledging the challenge of complex emergencies/multiple
stressors (e.g. cholera outbreak – summer 2008/9)
• Win-win strategies (e.g. corridor and landscape planning as an
adaptation strategy)
– Link to overall thinking on policy on climate change and environment in
Africa – multiple synergies and the MEAs (more shortly)
• Understanding thresholds and progressive exceedances (households,
institutions, management systems, ecosystems)
• Root adaptation in what is currently done to cope with climate variability
(from the communal farmer to the mining house)
How South Africa & SADC are tackling
climate change
• Beyond communication & dissemination of
climate risk science to real sectoral & multisectoral impact
– Second National Communication on Climate Change (led by SANBI –
www.sanbi.ac.za)
– Global Change Grand Challenge; including Global Change Bureau,
ACCESS, COE on Sustainability and Global Change, SAEON, Risk &
Vulnerability Atlas
– Adaptation and other climate change units at Dept Water &
Environment
– Units at Dept Water & Environment – key focus on concrete strategies
across departments, including water, health, disaster management,
agriculture (planning commission in Office of the Presidency)
Work in SADC – coupling climate change capacity building to
existing SADC early warning and disaster management
processes
Towards Copenhagen & COP15
• Hopes in international climate
negotiation that a new, international
climate change agreement for the post2012 period will be agreed in
Copenhagen in 2009.
• Again, we are already committed to a certain amount
of change, even with great progress in Copenhagen
Nairobi Declaration on African Process for
Combating Climate Change (May-June 2009)
Common African negotiating position on a comprehensive international Climate
Change regime beyond 2012;
ensure that African common position – basis for negotiations by African
group during negotiations for post2012 regime + takes into account Africa priorities
(SD,poverty reduction and MDGs attainment)
Develop a comprehensive framework of African Climate Change Programmes
(coordination & coherence in implem and review of climate change initiatives & SD plans in Africa @ all
levels; + common approach to engaging international community);
Support Africa to increase economic competitiveness - low carbon development;
Urge dev countries to set ambitious emissions reductions targets (2020 - @ least 40%
below 1990 levels; 2050 – 80 – 95% below 1990 levels)
Common approach to engaging with the international community in developing
solutions to tackle the challenges posed by climate change;
Agreement on the modalities for submitting the outcomes of the Special Session to
the African Union at its summit to be held in July 2009
Africa priorities for increased support under
future climate regime
•
•
•
•
Adaptation
Capacity building
Research
Financing (improved geographical distribution of CDM projects;
expansion of eligible categories to benefit from carbon credits &
other post-2012 incentives to incl sustainable land use– possible fund
establishment to reduce emissions through sustainable land-management practices;
incl forest conservation, sustainable forest management, avoidance of deforestation,
afforestation and sustainable agriculture)
• Technology devt & transfer (just mentioned)
• Incl support for South-South transfer of knowledge
• Including indigenous knowledge systems
Annex IV – Conceptual framework for African climate change programmes –
UNEP/AMCEN/12/9
Sobering realities on the way
forward to conclude
• Joanne Yawitch (Water & Environment DDG) –
comment on UNFCCC negotations in Bonn
– ‘confident will come out of Copenhagen with an
architecture of what the Climate Change regime will
look like’ (although picture post G8 not encouraging)
– ‘…very confident that one will get a second Kyoto
commitment period, with new numbers’
– ‘less optimistic’ that the financial framework for
developing-country support would be finalized
Christy van der Merwe, Engineering News, June 11th 2009