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- Newsgroups: rec.backcountry,sci.environment,talk.environment,alt.wolves
- Subject: Re: Alaska to shoot hundreds of wolves/ Milankovitch Cycle
- Message-ID: <1992Nov23.120709.1@vmsb.is.csupomona.edu>
- From: cvakgaaq@vmsb.is.csupomona.edu
- Date: 23 Nov 92 12:07:09 PST
- References: <1992Nov20.124348.1@vmsb.is.csupomona.edu> <1ek28iINNc0s@hpscdf.scd.hp.com>
- Organization: California State Polytechnic University, Pomona
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- In article <1ek28iINNc0s@hpscdf.scd.hp.com>, sommer@scd.hp.com (Jeremy Sommer) writes:
- > cvakgaaq@vmsb.is.csupomona.edu wrote:
- > :...
- > : The funny thing about this is that in the next few centuries the
- > : populations in the North will decrease because the treeline is rapidly moving
- > : south in response to Global cooling caused by the Milankovitch cycle. The
- > ^^^^^^^^^^^^^^^^^^
-
- Milankovitch was a Serbian mathematician who showed that because the
- Earth's orbit is elleptical and the Earth has an Axial tilt, and wobbles about
- the axis, then there are variations over periods of thousands of years in the
- amount of solar radiation striking the Earth's surface during the seasons.
- For the Northern Hemisphere, the variations are from a hot summmer
- and a cold winter to a mild summer and a mild winter. When the summers are
- mild, then less snow melts than falls in the winter; the glaciers grow,etc.
- The other key to the Ice Age is Plate tectonics. Normally ocean
- currents carry warm water from the equator to the poles. the poles are
- currently blocked by land masses, so there is no heat transfer at all.
-
- The Milankovitch cycle fits the paloebiological record for temperature
- changes very well.
-
- You can see the Milankovitch Cycle driving temperature changes if
- you live near tyhe mountains or in Canada. Locate the treeline. Notice the
- absence of seedlings. Only mature specimens. I we were getting warmer, the
- treelines would show growth; but they don't. Anyone can see this with
- thweir own eyes, they don't need special equipment. You don't even need the
- absolute treeline--just find the treelinf for a specific species.
-
- Global warming is a lie.
-
- The book to read is called Ice Ages by J and K Imbries. Its easily
- available at most libraries. Its a real good read. See alsos the books by EC
- Peilou, the canadian naturalist.
-
- -Austin Moseley
-
-