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Politics : The Environmentalist Thread -- Ignore unavailable to you. Want to Upgrade?

To: HPilot who wrote (17829)	11/30/2007 8:01:30 AM
From: Wharf Rat	Read Replies (1) \| Respond to of 36917

"One major storm, earthquake, etc. can change the climate," Did I say volcano? Did I say asteroid? While you are running the train, put on a tape of "How to read English for Dummies". It'll do you no harm.

To: HPilot who wrote (17829)	11/30/2007 8:24:02 AM
From: Wharf Rat	Read Replies (1) \| Respond to of 36917

"asteroid started the last ice age" Just so you won't have to appear dumb on any thread but this one, A summary of the sequence of events for the last 130,000 years ('real' years); Phases about as warm or warmer than the present are marked in bold. -------------------------------------------------------------------------------- 150,000 y.a. - cold, dry full glacial world around 130,000 y.a. - rapid warming initiates the Eemian interglacial (Stage 5e) 130,000-110,000 y.a. - global climates generally warmer and moister than present, but with progressive cooling to temperatures more similar to present. (except for possible global cold, dry event at 121,000 y.a.) ?110,000 y.a. - a strong cooling marks the end of the Eemian interglacial (Stage 5e). 105,000-95,000 y.a. - climate warms slightly but still cooler and drier than present; strong fluctuations. 95,000 - 93,000 y.a. - another cooler phase similar to that at 110,000 y.a. 93,000 - 75,000 y.a. - a milder phase, resembling that at 105,000-95,000 y.a. 75,000 - 60,000 y.a. - full glacial world, cold and dry (the 'Lower Pleniglacial' or Stage 4) 60,000 - 25,000 y.a. - 'middling phase' of highly unstable but generally cooler and drier-than-present conditions (Stage 3) 25,000 - 15,000 y.a. - full glacial world, cold and dry; Stage 2 (includes the 'Last Glacial Maximum') (This period includes two 'coldest phases' - Heinrich Events - at around 23,000-21,000 y.a. and at 17,000-14,500 y.a.) 14,500 y.a. - rapid warming and moistening of climates in some areas. Rapid deglaciation begins. 13,500 y.a. - nearly all areas with climates at least as warm and moist as today's 12,800 y.a. (+/- 200 years)- rapid onset of cool, dry Younger Dryas in many areas 11,500 y.a. (+/- 200 years) - Younger Dryas ends suddenly, back to warmth and moist climates (Holocene, or Stage 1) 9,000 y.a. - 8,200 y.a. - climates warmer and often moister than today's about 8,200 y.a. - sudden cool and dry phase in many areas 8,000-4,500 y.a. - climates somewhat warmer and moister than today's Since 4,500 y.a. - climates fairly similar to the present (except; about 2600 y.a. - relatively wet/cold event (of unknown duration) in many areas) esd.ornl.gov === You probably heard some adults talking about this and got confused... news.nationalgeographic.com pbs.org