Chilean capitol experiences coldest July since 1908
SANTIAGO -- Climate change affecting the globe including record-breaking winter weather in the southern hemisphere.
People living in Chile's capital of Santiago suffered the coldest July since 1908, according to the University of Chile's Department of Geophysics.
...
Frost damage to avocados, oranges and lemons could reach as much as forty percent, according to the English-language daily.
Posts
5 comments:
So, what caused the winter of 1908 then?
@ Anon, above.
My very first thought, too!
The winter of 2010 is NOT 'unprecedented' after all.
I have a growth on my left butt cheek. I'd like a million dollar federal grant to see if it is linked to "climate change".
"So, what caused the winter of 1908 then?"
"The Earth has an elliptical orbit around our Sun. This being said, the Earth is at its closest point distance wise to the Sun in January (called the Perihelion) and the furthest in July (the Aphelion). But this distance change is not great enough to cause any substantial difference in our climate. This is why the Earth's 23.5 degree tilt is all important in changing our seasons. Near June 21st, the summer solstice, the Earth is tilted such that the Sun is positioned directly over the Tropic of Cancer at 23.5 degrees north latitude. This situates the northern hemisphere in a more direct path of the Sun's energy. What this means is less sunlight gets scattered before reaching the ground because it has less distance to travel through the atmosphere. In addition, the high sun angle produces long days. The opposite is true in the southern hemisphere, where the low sun angle produces short days. Furthermore, a large amount of the Sun's energy is scattered before reaching the ground because the energy has to travel through more of the atmosphere. Therefore near June 21st, the southern hemisphere is having its winter solstice because it "leans" away from the Sun."
But isn't that exactly what global warming predicts? Hotter summers, colder and more harsh winters, but overall a slight increase in global temperature.
Post a Comment