IAMSLIC Conference Suva Fiji 15 th September 2008
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
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
Part 1 The reality of climate change
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.
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.
From IPCC 4 th Assessment Report, 2007
Observing the effects of climate change + 0. 8°C since 1940 s - Hopkins Marine Station, California - Pacific sea anemone
Marr Ice Piedmont, Antarctica - winter temperatures +5°C since 1950
Naigani Island, Fiji – shoreline erosion as a result of sea-level rise See the fallen coconut trees
Naicabe Village, Moturiki Island, Fiji – at low tide
Navuti Village, Moturiki Island, Fiji – at high tide
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
Part 2 Looking back to the past
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
Climate change as a continuous process
Climate change for a variety of reasons
Climate change as a cause of cultural change
Climate change as a cause of cultural change
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.
Part 3 Looking forward to the future
Looking forward to the future
Looking forward to the future • Effect on food productivity – Crops – Wild foods – Reef foods
Looking forward to the future • Effect on food productivity – Crops – Wild foods – Reef foods • Effect on disease transmission • Effect on human comfort
Looking forward to the future Tahiti (French Polynesia) sea-surface temperatures
Looking forward to the future
Looking forward to the future • Projected to rise 1595 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.
Future sea-level rise
Looking forward to the future • Effect on island water tables – Contraction and salinization
Looking forward to the future • Effect on island water tables – Contraction and salinization – More frequent flooding
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
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
Looking forward to the future • Predicting the future • Enabling decisionmaking • Education about climate change • Achieving sustainability
Part 4 Meeting the challenge of climate change in the Pacific Islands
“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
“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
“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
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
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
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; Pacific Island theynations should not continue to depend on external climate-change adaptation; they should accept thefunding issue asforone accept thethem issueintimately as one that affects them intimately and that affects should signal this acceptance by committing recurrent inand should signal country funds. acceptance by committing recurrent in-country funds.
CROSS-CUTTING ISSUE #2: Effective long-range planning • Long-term national plans should focus on environmental sustainability not short-term profit
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
CROSS-CUTTING ISSUE #3: Mainstreaming climate-change awareness • Media responsibility
CROSS-CUTTING ISSUE #3: Mainstreaming climate-change awareness • Media responsibility • Coordinated efforts to raise awareness through written and oral outreach
CROSS-CUTTING ISSUE #3: Mainstreaming climate-change awareness • Media responsibility • Coordinated efforts to raise awareness through written and oral outreach • Role of churches
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
CROSS-CUTTING ISSUE #4: Empowering communities • Direct targeting of community-level decision-makers by international donors and NGOs
CROSS-CUTTING ISSUE #4: Empowering communities • Direct targeting of community-level decision-makers by international donors and NGOs • Awareness raising by national bodies
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
Flooding in Nadi Town, Fiji – May 2007
Flooding in Nadi Town, Fiji – May 2007
Short-term solutions – not sustainable in long-term Flooding in Nadi Town, Fiji – May 2007
Nadi Town (Fiji): the imperative for relocation
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
Conclusion
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.
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.
Thank you for your attention
- Slides: 58