Geologists say previous extinction due to global warming

[lovuian]

http://feeds.bignewsnetwork.com/?sid=294871
snip....
According to the study in the forthcoming issue of the journal Geology, creeping environmental stress fuelled by volcanic eruptions and global warming was the likely cause of the Permian era mass extinction.

Earth scientists at USC, have supported a model that attributes the extinction to enormous volcanic eruptions that released carbon dioxide and methane, triggering rapid global warming.

When large amounts of hydrogen sulphide escaped into the atmosphere, the gas killed most forms of life, besides damaging the ozone shield, thereby increasing the level of harmful ultraviolet radiation reaching the planet's surface.

According to the study, organisms in the deep ocean started dying first, followed by those on ocean shelves and reefs, and finally those living near the shore.


All I can say is WAKE UP NeoCons

[Xipe Totec]

1. See? It's all natural

we were meant to go extinct anyway...

It's all part of the plan.

[Mz Pip]

4. Perhaps all of that hot air

will help facilitate rapturing up.

Regular cool air can't pssibly lift those bodies up to Heaven.

Maybe that's what happened to the Dinosaurs. They got Raputred up on a stream of hot air. We'll meet them all if we're good and vote for Mitwit.

Mz Pip
:dem:

[ixion]

2. The deniers will continue to deny until it's far too late

at which point we'll all be royally screwed.

[Uncle Joe]

3. It's all so logical, many of them will have a problem with that.

Thanks for the thread, lovuian.

[bbinacan]

5. University of Carolina?

:wtf:

I don't think there is such a place.

[Uncle Joe]

7. This could be a joke or misprint by the O.P or website

but the more I think about it, this hypothesis makes sense.

[bbinacan]

8. Since the article mentions USC

they may mean U of South Carolina.

[gulfcoastliberal]

6. Did you say hydrogen sulfide eruptions?

Natural Hazards >> Unique Imagery >> Hydrogen Sulfide Eruption off Namibia
Hydrogen Sulfide Eruption off Namibia Image. Caption explains image. Click here to view high-resolution version (1.3MB)
Image Acquired: July 25, 2007

Hydrogen Sulfide Eruption off Namibia

The brilliant burst of neon blue and green that hugs the shore of Namibia in this photo-like image might be beautiful from space, but it is deadly on the ground. The color is caused by hydrogen sulfide erupting to the surface. The foul-smelling gas is toxic by itself, but it also robs the water of oxygen when it erupts to the surface, leading to large fish kills. Ironically, it is the ocean’s productivity in this region that causes the deadly eruptions.

Strong ocean currents sweep nutrient-rich water to the sunlit surface of the Atlantic Ocean off the coast of Namibia. The ample supply of nutrients allows tiny free-floating plants (phytoplankton) to proliferate. When the large phytoplankton blooms die, the plants sink to the ocean floor, where bacteria break them down. The anaerobic bacteria that complete the decay process release toxic hydrogen sulfide into the ocean. The gas builds near the ocean floor until a bubble erupts to the surface. As it rises, the hydrogen combines with oxygen to form water molecules, leaving solid, yellow sulfur. The sulfur scatters yellow light, lending the water a brilliance that can range from milky white to electric blue.

This particular eruption surrounds Walvis Bay and stretches north along the Skeleton Coast and south to the orange dune fields of the Namib Desert. The city of Walvis Bay is a faint gray discoloration on the southern shore of the bay. The Moderate Resolution Imaging Spectroradiometer (MODIS) flying on NASA’s Aqua satellite captured this image on July 25, 2007. The large image provided above has a resolution of 250 meters per pixel. The MODIS Rapid Response System provides the image in additional resolutions.
http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14415

[lovuian]

9. That pic is Awesome

Amazing gulfcoastliberal