Space and Earth

[mattweather]

I would like ask to you all people about earth and space.

Does space affects earth's climate?

This is too hard me to understand this:mad2:

Matt

[[1ponders]]

Hi Matt.

Space itself doesn't, it is principally the sun that drives our weather and the tilt of the earths axis that gives us our seasons. But the tilt doesn't work alone. There is a cycle called the MilankovitchCycle (I think that's how it's spelt) that affect our long term worldwide climate.

The cycle has three components:
1. Changes to the tilt of the earths axis. The axis can change over a period of about 40,000 years from about 22.1 to 24.5 deg
2. Precession of the axis. The axis moves in a circle over a period of 26,000 years.
3. Increased eccentricity of the earths orbit over a 100,000 period. From Perihelion of the lowest eccentricity (orbit nearly round) to apihelion at creates eccentricity (more oval) there can be a 30% difference in the amount of solar radiation the earth receives.

You can find more info on the Milankovitch Cycles here (http://earthobservatory.nasa.gov/Library/Giants/Milankovitch/milankovitch_2.html). Its an interesting read. Or maybe this one (http://www.homepage.montana.edu/~geol445/hyperglac/time1/milankov.htm)

[mattweather]

I sure it from the sun, but what about the solar waves? Looks like the weather patterns are similar before the last ice age.

Matt

[ving]

the ice age aproacheth... just read my signature ;)
there sure are signs that we may be aproaching another ice age given weather patterns. theres a thread here on global warming that you should probably read. it has some good links and info from both sides of the fence
http://www.iceinspace.com.au/forum/showthread.php?t=7788
and a graph showing icesheet temperature over thousands of years :)
http://www.iceinspace.com.au/forum/showpost.php?p=96929&postcount=64

hope this helps