![]() |
![]() |
||
![]() |
Quote:
http://www.homepage.montana.edu/~geol445/hyperglac/time1/milankov.htm And if you take into account the solar activity itself... well... it seems that mankind had little to no influence whatsoever in this. Besides, without the green house-effect we'd all be dead, because the average temperature on earth would drop far below zero. |
![]() |
|
![]() |
Unfortunately it is an idiotic argument because we all agree that temperatures have fluctuated throughout history and we all agree that it is a natural cycle what we are arguing about is how much input man has had on that natural cycle.
Yet we sit here with "Anti" crowd shouting it doesn't exist and and the "Pro" side shouting its all man made when in reality the truth as usual is somewhere between the two extremes. As for the "mini-ice age" of the 1700s well it just so happens that we had a huge amount volcanic activity and low solar activity through that period so we know what caused that one. |
![]() |
||
![]() |
Quote:
Particulate matter in the atmosphere causes a cooling effect as does the conversion of SO2 to H2SO4 when SO2 reaches the stratosphere. Ash clouds block the suns radiation and H2SO4 in the the stratosphere reflects radiation. During the period 1580-1660 there were several major eruptions such as Mitchell (Billy Mitchell), Huaynaputina, Mount Cotabato and Long Island (PNG) to a Volcanic Explosivity Index of 5 or greater (Krakatoa was a 6 and Pompei was a 5 on this index). |
![]() |