1
The upper layers of Earth's oceans have cooled (0) ........... over the past two years, even though
the planet as a whole is warming up. SIGNIFY
2
While this may just be part of the natural (1) ______ of oceans, climatologists are still confounded by the massive unaccountable loss of heat. VARY
3
Scientists have been (2) ______ concerned by rising sea temperatures over...INCREASE
4
Scientists have been (3) ______ concerned by rising sea temperatures over the last 50 years but these new (4) ..... tell a different story. FIND
5
Generally speaking, the (5) _______ of heat by the oceans reduces atmospheric warming. ABSORB
6
Now (6) ........ taken by the National Oceanic and Atmospheric Administration have put a wrinkle in the trend. MEASURE
7
The researchers used data from 3000 floating buoys which monitor the oceans (7) __________. WORLD
8
They found that the oceans dropped in temperature by an (8) ______ 0.02 degrees centigrade between 2011 and 2013. BELIEVE
9
Now, that may not seem like much, but trying to account for the missing energy is proving
to be enormously (9) ...... . lt is possible that volcanic eruptions are one main cause of the phenomenon, but no firm answers have yet been provided. PROBLEM
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