global environmental trends: feeding the world world resources institute
TRANSCRIPT
Global Environmental Trends: Global Environmental Trends: Feeding the WorldFeeding the World
World Resources InstituteWorld Resources Institutehttp://www.wri.org/wri/http://www.wri.org/wri/
WORLDWORLDRESOURCESRESOURCES
INSTITUTEINSTITUTE
WORLDWORLDRESOURCESRESOURCES
INSTITUTEINSTITUTE
0
1
2
3
4
5
Yiel
d (m
etric
tons
/hec
tare
)
1960 1965 1970 1975 1980 1985 1990 1995 2000
Wheat Yield Rice Yield Maize Yield
Yields Are Up, But Growth is SlowingYields Are Up, But Growth is Slowing
WORLDWORLDRESOURCESRESOURCES
INSTITUTEINSTITUTE
WORLDWORLDRESOURCESRESOURCES
INSTITUTEINSTITUTE
-2
0
2
4
6
8
10
12
% In
crea
se in
Yie
ld
1960 1965 1970 1975 1980 1985 1990 1995 2000
Wheat Paddy Rice Maize
Yields Are Up, But Growth is SlowingYields Are Up, But Growth is Slowing
WORLDWORLDRESOURCESRESOURCES
INSTITUTEINSTITUTE
WORLDWORLDRESOURCESRESOURCES
INSTITUTEINSTITUTE
Progress in Feeding the World Has Progress in Feeding the World Has Varied Widely by RegionVaried Widely by Region
80
100
120
140
160
180
1961 1966 1971 1976 1981 1986 1991 1996
Inde
x Nu
mbe
rs 1
961=
100
U.S.S.R. (former) AfricaAsia EuropeWorld Latin America
WORLDWORLDRESOURCESRESOURCES
INSTITUTEINSTITUTE
WORLDWORLDRESOURCESRESOURCES
INSTITUTEINSTITUTE
Progress in Feeding the World Has Progress in Feeding the World Has Varied Widely by RegionVaried Widely by Region
50
100
150
200
250
300
350
1961 1966 1971 1976 1981 1986 1991 1996
Inde
x Nu
mbe
rs 1
961=
100
U.S.S.R. (former) Africa
Asia Europe
World Latin America
WORLDWORLDRESOURCESRESOURCES
INSTITUTEINSTITUTE
WORLDWORLDRESOURCESRESOURCES
INSTITUTEINSTITUTE
Despite Gains, Millions Go HungryDespite Gains, Millions Go Hungry
0
200
400
600
800
1,000
1969-71 1979-81 1990-92 2010(mill
ion
pers
ons
suffe
ring
from
und
ernu
tritio
n)
Sub-Saharan Africa Near East and North AfricaEast and Southeast Asia South AsiaLatin America and the Caribbean
WORLDWORLDRESOURCESRESOURCES
INSTITUTEINSTITUTE
WORLDWORLDRESOURCESRESOURCES
INSTITUTEINSTITUTE
World Totals(million hectares)
Vegetation Removal 579Overexploitation 133Overgrazing 679Agricultural Activities 522Industrial and Bioindustrial 23
Degraded Soil Means Less FoodDegraded Soil Means Less Food
0
50
100
150
200
250
300
350
(mill
ions
of h
ecta
res
degr
aded
)
World Africa North andCentralAmerica
SouthAmerica
Asia Europe Oceania
Vegetation Removal Overexploitation
Overgrazing Agricultural Activities
Industrial and Bioindustrial
WORLDWORLDRESOURCESRESOURCES
INSTITUTEINSTITUTE
WORLDWORLDRESOURCESRESOURCES
INSTITUTEINSTITUTE
Food Supply Increasingly Relies on Food Supply Increasingly Relies on IrrigationIrrigation
0
2
4
6
8
10
12
1961 1966 1971 1976 1981 1986 1991
(per
cent
)
Africa Asia Latin America Europe
North America Oceania World