On Jun 1, 11:34Â*am, Roger Coppock wrote:
On Jun 1, 3:30Â*am, Roger Coppock wrote:

Please see:

http://www.nature.com/nature/journal...ture09043.html

Â*"Accounting for multiple sources of uncertainty, a composite of
several OHCA curves using different XBT bias corrections still yields
a statistically significant linear warming trend for 1993–2008 of 0.64
W m-2 (calculated for the Earth’s entire surface area), with a 90-per-
cent confidence interval of 0.53–0.75 W m-2."

Do yourself a favor Roger,this is not a childish exercise ,it lets you
and everyone else know how much they understand of climate along with
how much you understand of the Earth and its motions.

Take one chair or any object and set it in the center of a garden or
large room to represent the central Sun.Get a broom representing both
the daily rotation of the Earth and its 'tilt' and start to walk
around the perimeter while keeping the broom handle pointing in the
same direction.You will notice something immediately,at times you will
have to crab sideways,then walk backwards and then forwards in your
'orbital' motion about the central chair/Sun representing the orbital
motion of the Earth as it moves along its orbital circumference.

At the polar outposts they experience a single daylight/darkness cycle
as the Earth orbits the Sun with 6 months of daylight followed by 6
months of darkness and a brief period of polar twilight at the orbital
points of the equinoxes.What causes the polar coordinates to turn
through the circle of illumination at the equinoxes arises strictly
from the specific way the Earth orbits the Sun just as you have to
walk around the central chair in order to satisfy daily rotation and
its 'tilt' characteristic in pointing to Polaris at all times.

So Roger,it would be nice to hear a proper explanation for the
temperature fluctuations at different latitudes throughout the annual
cycle before moving on to more complex variations through whatever
causes.The role of 'tilt' is in determining that the Earth has a
largely equatorial climate as opposed to a planet like Uranus which
has a polar climate so that 'tilt' does not cause the seasons,the
cause is strictly a characteristic of the orbital motion of the
Earth.So Roger,split the daylight/darkness cycles into two separate
effects and assign an individual cause for both,daily rotation for the
day/night cycle and the polar daylight/darkness cycle due to the
orbital motion of the Earth.Then you might,just might understand for
the first time that it is the length of time a latitudinal location
spends in the orbital shadow or in solar radiation which determines
global temperatures and climate rather than inclination to solar
radiation.