The UN's IPCC
claims the warming
of the twentieth century
cannot be explained
by natural causes.
That is a HUGE lie.
The global average temperature
is always changing, usually
more than what is claimed
( a mere +1 degree C.
( a mere +1 degree C.
warming claimed since 1880 ).
Temperatures have been cooling
since 8,000 and 2,000 years ago;
warming since 20,000 years ago,
and also warming since 1850.
Global warming during
the twentieth century
was between 1910–1940
and 1975–2000,
at rates of a little over
+1.5°C. per century.
1910–1940 had to be
natural global warming,
prior to the major build-up
of greenhouse gases
in the atmosphere.
Surface measurements in
the late twentieth century
warming are exaggerated
by inadequate correction
for economic growth
(more asphalt, cement, buildings, etc.)
near many thermometers,
called the urban
heat island effect.
There was nothing unusual
about late twentieth century
warming -- it falls well
within the range of
previous natural variations.
Fluctuations in ancient
atmospheric temperature and
atmospheric CO2 levels
were first detected in
polar ice core samples
analyzed during the 1970s.
From the early 1990s,
higher-resolution sampling
of the ice cores
has repeatedly shown
historic temperature
changes precede the
similar changes
similar changes
in CO2 by several
hundred years.
hundred years.
When you add up
the historical evidence,
there is no proof that
the late 20th century warming
is anything other than
natural warming.
And the ice core studies
say natural temperature changes
CAUSE CO2 level changes
with a multi-hundred year delay
-- most likely
from the slow warming
of the oceans,
from natural causes,
which causes them
to gradually release
dissolved CO2,
just like a cold soda,
releases dissolved CO2
into the air,
releases dissolved CO2
into the air,
while sitting outside
on a warm day.