Top Posters
Since Sunday
r
6
u
5
b
4
r
4
o
4
d
4
n
4
l
4
V
3
3
m
3
s
3
SlideshowReport

Average Global Temperature Rise over the Past Century

Description
Instrument-measured air temperatures are compared to the average from 1961 to 1990 (the zero line) to calculate the observed temperature anomaly.
Related Images
Explore
Post your homework questions and get free online help from our incredible volunteers
  298 People Browsing
 312 Signed Up Today
Your Opinion
Which country would you like to visit for its food?
Votes: 129

Previous poll results: Do you believe in global warming?