Polar Bear
Study
 
Screen 1 of 2
 
A
report
warns
 
that
most
polar bears
could
disappear
 
from
 
the
Arctic
 
by
 
2100
 
due to
global
warming.
Most
 
of
 
the
Arctic's
polar bear
 
population
 
may
not
 
survive
 
due to
melting
sea
ice.