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average
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seem to
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e anomaly o
1951-1980.
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ory and that
us.
f 0.54°C rel
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ed it, but
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s still too ea
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ability, is th
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and the beg
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ssion has be
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arly to determ
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marked acce
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has not follo
een marked
ulated over t
cooler than t
l 0.44°C (s
l temperatur
mine the exa
a manifestati
thening of t
ols? The caus
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e 21st Centu
wed a consta
by numero
the
the
see
res
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the
ses
the
ury.
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ous
Figure 2.1.
and sea since
.
Surface tempe
e 1880 (data fro
erature as a glo
om http://data.g
obal average for
giss.nasa.gov/gi
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contine
and ove
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calcula
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high lat
e regional dis
ents at high
er the ocean
ature over t
compared t
ated from
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titudes of the
stribution is
latitudes, th
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two periods
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shows the d
of five yea
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p/. Signs o
emisphere ar
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being less a
distribution o
ars, 1998-20
ution over
available
of intensified
re very notic
patterns on t
at low latitud
of anomalies
002 and 200
(1951-198
on the s
d warming
eable. We no
the
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in
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ote
