During the middle of the Eocene, about 40 million years ago...

On 11/4/10 5:19 PM, Sam Wormley wrote:
On 11/4/10 4:45 PM, oriel36 wrote:
From January to July where you live there is a huge temperature
increase and you can't explain it

The angle of incident sunlight goes from less than 25° above the
horizon around noon on the winter solstice to more than 71° above
the horizon around noon on the summer solstice. My part of the
world absorbs way more sunlight (and IR) causing warmer temperatures
in the summer than winter.

These are things you should have learned in school, Gerald.



A necessary condition for this angular change is the fact that the
rotational axis of the earth is tilted with respect to the normal
of the ecliptic by roughly 23.5° .