Media Climate Change Bias; Only Melting Ice Makes News

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Figure 1 shows
the extent of Antarctic sea ice for 2010 up to September 10. Ice
extent has been about 1 million square kilometers above the 1979–2000
average. Notice the 2009 ice amount was above average as well. This
matches reports of record cold temperatures around the Southern
Hemisphere. On July 27, 2010 we learned from Peru, “Temperatures
plummeted to below –20°C prompting the government to declare
a state of emergency for nearly half of the country Friday.”
~ Source

From Argentina,
“Local newspapers reported that the temperature plunged to
–1.5°C in Buenos Aires, on Friday – making it the
coolest day in a decade for the capital. Even the beaches saw white
powder. The coastal resort city Mar del Plata was blanketed by snow
for two days straight.

One report
with the headline “South American winter starts with a severe
cold snap” reports,
“Argentina, Paraguay, Uruguay and Brazil are also experiencing
the cold snap, which has killed millions of fish and an untold number
of livestock.”

While the mainstream
media ignore cold and recent changes in sea ice, it’s a good
time to give an overview of different ice conditions. Melting ice
has two attractions for global alarmists. It is supposedly a sign
of warmer temperatures and it plays to people’s unjustified
fears about rising sea levels. This is why it was a central part
of Gore’s movie, An
Inconvenient Truth
.

Different
Ice Categories

Ice is formed
from water freezing or snow melding (a thing formed by merging or
blending) under heat and pressure into ice. Both can exist as brittle
or plastic. Under sufficient heat and pressure, ice will become
plastic and flow, which is an important feature to understand about
the dynamics of glacial movement.

Sea ice forms
when seawater temperature drops below –4°C. It is lower
than for freshwater because of the salt content, but the ice when
formed is salt free because of the formation process. This was a
major question Wales and Dymond, two scientists sent by the Royal
Society to Churchill Manitoba in 1769 to observe the Transit of
Venus, were asked to determine. They couldn’t resolve the issue
because saltwater spray contaminates most sea ice.

The major areas
of sea ice are the seasonal expansion and melt in the Arctic Ocean
and around Antarctica. We’ve been measuring these with satellites
since 1978, but it took two years to determine an accurate interpretation,
so 1980 is a safe base. Even then there are differences between
interpretations and these are examined and compared admirably at
Anthony
Watts web site
.

Read
the rest of the article

September
17, 2010

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