Nicholas Posted June 21, 2009 Share Posted June 21, 2009 ScienceDaily (June 19, 2009) — Scientists have unearthed striking evidence for a sudden ancient collapse in plant biodiversity. A trove of 200 million-year-old fossil leaves collected in East Greenland tells the story, carrying its message across time to us today. Find the article HERE! Link to comment Share on other sites More sharing options...
Shamalama Posted June 21, 2009 Share Posted June 21, 2009 Makes sense.... what we are experiencing now can't be the first time it's happened in 4.5 billion years! I suggest we develop cars that suck up CO2 like vaccum cleaners. Then we dump it back into the ocean, along with anything we want fossilized for the next 100 million years. I call the system "Create Your Own Fossil" ®(llc)(xyz)(pdq) -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
mommabetts Posted June 22, 2009 Share Posted June 22, 2009 Thanks for sharing. Link to comment Share on other sites More sharing options...
ashcraft Posted June 22, 2009 Share Posted June 22, 2009 AS I recall basic biology- plants need CO2 to grow increased CO2 levels cause plants to grow faster Why would this lead to loss of plant diversity? It wold hurt C-4 photosynthetic plants growth advantage (corn, grasses, etc) over C-3 plants, but don't see how it would exclude either. C-4 are specialist plants for the most part anyway. The key here is the researcher who says that sulfur levels could also be to blame, i.e. volcanic eruptions, the other fellow is grabbing straws, probably looking for a grant. Brent Ashcraft ashcraft, brent allen Link to comment Share on other sites More sharing options...
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