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

To: Peter Dierks who wrote (6147)	4/4/2006 1:59:42 PM
From: maceng2	Read Replies (1) \| Respond to of 36917

Human related activity seems to be causing both heating and cooling by the looks of things. One effect may mask the other at times. As said, Venus is an example. news.bbc.co.uk Do you think the loss of Earths visibility is unconnected with human activity?? OK, show us some evidence. Make a guess even. /snippet ======================================================= The prevailing view of Venus used to be very different. "Even though Venus is closer to the Sun, its cloud cover is very shiny and reflective," Fred Taylor explains. "If you work out the energy balance, Venus is actually absorbing less heat from the Sun than the Earth is. By-and-large, you might expect surface conditions to be the same." [note from pb... except its surface temperature is high enough to melt lead] Probe train With a 25km-thick layer of opaque cloud concealing the planet's surface from view, free rein has been given to science fiction writers, who have depicted Venus with lush jungle, swamp and oceans. It was only when unmanned space probes were sent to explore the planet at close range that its romantic image was finally shattered. ============================================================== /end snippet. i.e. loss of visibility is something to be concerned about.