global environmental change and food systems “gecafs”
DESCRIPTION
Global Environmental Change and Food Systems “GECAFS”. Global Environmental Change Changes in the biophysical environment caused or strongly influenced by human activities. For example changes in:. Land cover & soils Atmospheric composition Climate variability & means - PowerPoint PPT PresentationTRANSCRIPT
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Global Environmental Changeand Food Systems
“GECAFS”
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Global Environmental Change
Changes in the biophysical environment caused or strongly influenced by human activities
Land cover & soils
Atmospheric composition
Climate variability & means
Water availability & quality
For example changes in:
Nitrogen availability & cycling
Biodiversity
Sea currents & salinity
Sea level
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a means of considering, in an holistic manner, the links between a number of factors “from plough to plate”.
A Food System approach principally includes consideration of:
Production
Harvesting
Storage
Processing
Distribution
Consumption
Food System
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Year
1950 1960 1970 1980 1990 2000
Are
a ha
rves
ted
per
capi
ta (
ha)
0.12
0.14
0.16
0.18
0.20
0.22
0.24
0.26
Yie
ld (
t/ha)
1.0
1.5
2.0
2.5
3.0
Area per capita
Yield
World cereal yield and area harvested per capita(from Dyson, 1996)
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Emerging issues for world food production(adapted from IFPRI, 1997)
Fresh water supplies
Soil fertility and fertilizer use
Climate variability and climate change
Trade liberalization and market reform
Applications of emerging technologies
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Estimated global water scarcity in 2050(from Wallace, 2000)
Regions are coded according to their per capita annual renewable freshwater resource (m3/person/year).
< 1000 1000 - 2000 > 2000
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Severe soil degradation
Moderate soil degradation
Light soil degradation
No degradation
(from Oldeman et al., ISRIC 1990)
Global Assessment of Human-induced Soil Degradation (GLASOD)
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Climate Extremes
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Changed precipitation patterns(from Watson, CGIAR ICWG-CC w/s, Nairobi April 2002)
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Food Provision
Provision = f (production, availability, access)
Production = f (yield, area)
Availability = f (production, distribution, storage)
Access = f (availability, socioeconomic potential [e.g. affordability], & physiological potential [e.g. nutritional quality])
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Scientific research
Research capacity-building
Integration and synthesis
International scientific networks
Joint Projects: Carbon, Water and Food (GECAFS)
International Global Change Research Programmes
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Global Environmental Changeand Food Systems
“GECAFS”
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GECAFS interactions with Sponsoring Programmes and Strategic Partners
GECAFS
CGIAR& NARS
FAO IIASA
MAWMO
example collaborations in grey
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To determine strategies to cope with the impacts of
Global Environmental Change on food provision systems
and to analyse the environmental and socioeconomic
consequences of adaptation.
GECAFS Goal
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Fundamental Questions
1 Given changing demands for food, how will GEC additionally affect food provision and vulnerability in different regions and among different social groups?
2 How might different societies and different categories of producers adapt their food systems to cope with GEC against the background of changing demand?
3 What would be the socioeconomic and environmental consequences of such adaptations?
Global Environmental Change (GEC)and Food Systems
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GLOBAL ENVIRONMENTAL CHANGE (GEC)
Change in type, frequency & magnitude of environmental
threats
FOOD SYSTEMVULNERABILITY
SOCIETAL CHANGE
Change in institutions, resource accessibility,
economic conditions, etc.
Capacity to Cope &/or Recover
from GEC
Exposureto GEC
GEC and Food System Vulnerability
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Effects of Global Environmental Change on Food Provision
Overarching questions
• In which regions and to what extent are food production and provision potentially sensitive to GEC, and why?
• How will anticipated changes in food production due to GEC influence the availability and accessibility of food?
• To what extent might anticipated changes in socioeconomic conditions influence the impacts of GEC on food production potential?
Theme 1 – Vulnerability and Impacts
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Global Environmental Change and Options for Enhancing Food Provision
Overarching questions
• How have food production systems coped with or adapted to environmental variability and change in the past?
• What types of GEC will exceed the thresholds and speed of adaptive responses of current food production systems?
• Are existing institutions capable of providing effective adaptation options?
• What are the future costs to food provision of delaying the implementation of response strategies to GEC?
Theme 2 – Adaptations
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Environmental and Socioeconomic Consequences of Adapting Food Systems
Overarching questions
• How and to what extent will the environment be affected by adapting food systems in response to both changing demands and GEC?
• What are the socio-economic consequences of these adaptations?
• To what extent are management responses effective in mitigating GEC and consistent with socioeconomic capacities?
Theme 3 – Feedbacks
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Global Environmental
Change
Food Provision
Theme 1Vulnerability and
Impacts
Theme 2Adaptations
AdaptedFood Provision
Theme 3Environmental
Feedbacks
Socioeconomic Change
Theme 3Socioeconomic
Feedbacks
GECAFS Science Themes
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The scientific framework will be provided by IGBP, IHDP and WCRP building on their respective strengths of:
internationally-agreed science agendas which specifically include “impacts”, “adaptation” and “feedbacks” research
well-developed coordination and synthesis mechanisms
and will be further developed by consolidating links between the Global Change science community and research organisations working on agricultural, policy formulation and development issues.
GECAFS Scientific Framework
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Based on a strongly interdisciplinary approach and include all 3 GECAFS Science Themes
Designed to improve regional-level policy formulation for increasing preparedness and reducing vulnerability to GEC
Address issues identified in consultation with regional policy makers and the regional and international science and donor communities
Maintain close links between researchers and end-users in project design, implementation and reporting & interpretation
Develop research agendas of equal interest to development and science agencies
GECAFS Regional Research Projects
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Based on a strongly interdisciplinary approach and include all 3 GECAFS Science Themes
Designed to improve regional-level policy formulation for increasing preparedness and reducing vulnerability to GEC
Address issues identified in consultation with regional policy makers and the regional and international science and donor communities
Maintain close links between researchers and end-users in project design, implementation and reporting & interpretation
Develop research agendas of equal interest to development and science agencies
GECAFS Regional Research Projects
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