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IAMSLIC Conference, Suva, Fiji 15 th September 2008 Climate change: a janus-faced challenge for our times Patrick D. Nunn Professor of Oceanic Geoscience The University of the South Pacific
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Organization of this talk The reality of climate change Looking back to the past Looking forward to the future Meeting the challenge of climate change in the Pacific Islands
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Part 1 The reality of climate change
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The reality of climate change Global temperatures rose by an average of 0.5°C between 1890 and 1990. Global temperatures are projected to rise between 1.0°C and 3.5°C between 1990 and 2100. Maybe a six-fold acceleration.
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The reality of climate change Global sea level rose by an average of 15 cm between 1890 and 1990. Global sea level is projected to rise between 15 and 95 cm between 1990 and 2100. Maybe a six-fold acceleration.
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From IPCC 4 th Assessment Report, 2007
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+ 0.8°C since 1940s - Hopkins Marine Station, California - Pacific sea anemone Observing the effects of climate change
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Marr Ice Piedmont, Antarctica - winter temperatures +5°C since 1950
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Naigani Island, Fiji – shoreline erosion as a result of sea-level rise See the fallen coconut trees
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Naicabecabe Village, Moturiki Island, Fiji – at low tide
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Navuti Village, Moturiki Island, Fiji – at high tide
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Coming to terms with the reality of climate change We seek to minimize the impact of future climate change. Need to look back into the past to help us understand the present and future. Need to look into the future with all the tools at our disposal. Janus – Roman deity
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Part 2 Looking back to the past
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Looking back to the past Climate change as a continuous process Climate change for a variety of reasons Climate change as a cause of cultural change
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Climate change as a continuous process
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Climate change for a variety of reasons
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Climate change as a cause of cultural change
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Lessons from the past Climate is continuously changing Solar forcing is the principal cause of climate change Climate change is the principal cause of societal change.
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Part 3 Looking forward to the future
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Looking forward to the future
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Effect on food productivity –Crops –Wild foods –Reef foods
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Looking forward to the future Effect on food productivity –Crops –Wild foods –Reef foods Effect on disease transmission Effect on human comfort
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Looking forward to the future Tahiti (French Polynesia) sea-surface temperatures
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Looking forward to the future
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Projected to rise 15- 95 cm by 2100 compared to 1990 level (most likely 30 cm by 2050). Rate of sea-level rise will be about 1-6 times faster than the previous 100 years.
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Future sea-level rise
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Looking forward to the future Effect on island water tables –Contraction and salinization
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Looking forward to the future Effect on island water tables –Contraction and salinization –More frequent flooding
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Looking forward to the future Effect on island water tables –Contraction and salinization –More frequent flooding Effect on land area –Shrinkage of usable land area
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Looking forward to the future Effect on island water tables –Contraction and salinization –More frequent flooding Effect on land area –Shrinkage of usable land area –Shoreline erosion
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Looking forward to the future Predicting the future Enabling decisionmaking Education about climate change Achieving sustainability
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Part 4 Meeting the challenge of climate change in the Pacific Islands
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“Global mean sea level is projected to rise by 0.09 to 0.88 meters between the years 1990 – 2100. The effects of climate change on human health, eco-systems, food production, water resources, small islands and low lying coastal areas are likely to be serious. Overall, climate change is expected to negatively impact development, sustainability and equity.” Address to the Ninth Conference of the Parties to the United Nations Framework Convention on Climate Change Dr R K Pachauri, Chairman, IPCC Milan, 10 December 2003
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“It is truly frightening to think that our ocean will turn against us … I hope that the appeal of the peoples of the Pacific can help convince the industrialized nations to discontinue their profligate contamination of the atmosphere.” President Amata Kabua of the Marshall Islands, 1988
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“As a ten-year-old, I used to look at the sea with awe, at the seemingly endless supply of fish that I could harvest … now when I look at it, I wonder how far into the new millennium we will be before it overwhelms our coasts. What is there to celebrate about a new millennium if the northern group of the Cook Islands, or the many islands of Kiribati, Tokelau, Tuvalu, the Federated States of Micronesia and the Marshall Islands are about to disappear beneath the ocean?” Tamari’i Tutangata, Former Director of SPREP, 2000
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Management imperatives: FIVE CROSS-CUTTING ISSUES 1.Taking ownership of climate change 2.Effective long-range planning 3.Mainstreaming awareness of climate change 4.Empowering communities 5.Relocation
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CROSS-CUTTING ISSUE #1: Taking ownership of climate change Economic development of Pacific Island nations is inextricably tied to environmental productivity. Pacific Island nations should not continue to depend on external funding for climate-change adaptation; they should accept the issue as one that affects them intimately and should signal this acceptance by committing recurrent in-country funds. What is left after phosphate mining, Nauru
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CROSS-CUTTING ISSUE #1: Taking ownership of climate change Economic development of Pacific Island nations is inextricably tied to environmental productivity. Pacific Island nations should not continue to depend on external funding for climate-change adaptation; they should accept the issue as one that affects them intimately and should signal this acceptance by committing recurrent in-country funds.
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CROSS-CUTTING ISSUE #2: Effective long-range planning Long-term national plans should focus on environmental sustainability not short-term profit
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CROSS-CUTTING ISSUE #2: Effective long-range planning Long-term national plans should focus on environmental sustainability not short-term profit Dilemma for many smaller poorer democratic countries
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CROSS-CUTTING ISSUE #3: Mainstreaming climate-change awareness Media responsibility
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CROSS-CUTTING ISSUE #3: Mainstreaming climate-change awareness Media responsibility Coordinated efforts to raise awareness through written and oral outreach
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CROSS-CUTTING ISSUE #3: Mainstreaming climate-change awareness Media responsibility Coordinated efforts to raise awareness through written and oral outreach Role of churches
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CROSS-CUTTING ISSUE #3: Mainstreaming climate-change awareness Media responsibility Coordinated efforts to raise awareness through written and oral outreach Role of churches School education
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CROSS-CUTTING ISSUE #4: Empowering communities Direct targeting of community-level decision-makers by international donors and NGOs
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CROSS-CUTTING ISSUE #4: Empowering communities Direct targeting of community-level decision-makers by international donors and NGOs Awareness raising by national bodies
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CROSS-CUTTING ISSUE #5: Relocation: the unthinkable option? Acceptance that some places cannot continue to be occupied or utilized (as they are today) in future. Disruption associated with relocation can be reduced by early (anticipatory) action. Tuvalu
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Flooding in Nadi Town, Fiji – May 2007
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Short-term solutions – not sustainable in long-term
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Nadi Town (Fiji): the imperative for relocation
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CROSS-CUTTING ISSUE #5: Relocation: the unthinkable option? Acceptance that some places cannot continue to be occupied or utilized (as they are today) in future. Disruption associated with relocation can be reduced by early (anticipatory) action. Maloku, Moala Island, Fiji
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Conclusion
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I applaud the fact that a conference of information custodians is interested in climate change.. … because information is the ultimate key to confronting the challenge of climate change, information that is appropriately packaged and accessible.
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But in the end, it is for politicians to lead the way forward … … but there is little sign that this happening in Pacific Island nations at present.
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Thank you for your attention
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