Potential Impacts of Climate
Change on World Food Supply
Data Sets from a Major Crop
by Cynthia Rosenzweig
and Ana Iglesias
Note: This data set has now been superseded by a new data set on the effects of climate change on global food production under SRES emissions and socio-economic scenarios produced by the same authors. Users are recommended to use the new data instead. SEDAC is maintaining this web site for reference purposes.
The following query tools are designed to help users answer questions
of the data set resulting from the crop-climate modeling study. As a general
rule, the questions can be grouped into three subsets (as follows), with
their related query building tools (in the box below):
How dependent are crop yields on specific scenarios? (see Query 1
and Query 3)
Are climate change vulnerability and adaptation different for each
crop? (see Query 2)
Sample outputs are provided to give you a sense of the kinds of results
you can expect from each type of query. Click on the image in each sample
output box to see an enlargement.
1. I'm interested in one particular country or
region. I want to know what how specific scenarios of climate change,
CO2 effects and farmer adaptation
will impact crop yields in that country or region. (Choose
Show me yield changes in Australia for the three equilibrium
climate change scenarios (GISS, GFDL & UKMO) with CO2
effects but without adaptation.
2. I'm interested in one particular scenario,
and would like to see what the impact of this scenario would be on
yields for the four commodities in all BLS countries and regions.
Show me the impact of the GISS equilibrium scenario,
with CO2 effects and level 1 adaptation,
on the yields for all commodities in all BLS countries and regions.
3. I'm interested in one particular crop commodity,
and would like to see how it is affected by specific scenarios of
climate change, CO2 effects and
farmer adaptation in different regions. (Choose
Show me wheat yields in 2050 for all BLS countries and
regions under the CM3-A, CM2-S550, and CM2-S750 climate change scenarios,
without CO2 effects and with level