They did not.
Posted on 06/17/2007 8:36:46 AM PDT by rface
Scientists estimate there are 10 to 30 million plant and animal species on the planet, most of them unidentified. Each year as many as 50,000 species disappear. Most die off, Tilman says, because of human activity.......
Scientists say wildlife extinction rates are soaring. The die-off, they claim, threatens the planet's web of life or biodiversity which sustains farming, forestry and oceans. At a Paris meeting last week scientists called on world leaders to catalog and save species. One of the speakers was University of Minnesota ecology professor David Tilman. He's known around the world for his research showing the effects of human activity on the environment.
St. Paul, Minn. — The 1200 scientists and others at the international meeting sponsored by the government of France issued a statement at the end of the 5-day-long event. It said in part, "Biodiversity is being irreversibly destroyed by human activities at an unprecedented rate. . . (demanding) urgent and significant action."
New plant and animal species are emerging, University of Minnesota ecology professor David Tilman says, but not nearly fast enough to make up for the toll caused by human activity.
"That's sort of a 1 million to 4 million year process, and yet we are causing species to be lost at rates of 100 to 1000 times faster," he says.
Tilman says the rate of extinction is approaching what scientists assume happened 65 million years ago. That's when many believe a giant meteorite struck the earth, causing a dramatic climate change that led to mass extinction.
"Thirty million years (later) things were pretty much back to normal, different species, dinosaurs were gone, mammals were here," he says.
Unlike then, Tilman argues, we can't count on time to heal the earth's wounds.
Scientists estimate there are 10 to 30 million plant and animal species on the planet, most of them unidentified. Each year as many as 50,000 species disappear. Most die off, Tilman says, because of human activity. "We take natural habitats convert them to agriculture, to suburbia, to roads, to monoculture forestry. We fish the oceans so heavily we literally have these trolling nets that scrape the bottom of the ocean clean," he says.
Dave Tilman is a member of the National Academy of Sciences, the country's top scientific body, the author of four books and more than 140 scientific papers.
Unlike some scientists, he doesn't hesitate to give his opinion on what his research means. Tilman says human behavior is affecting the environment and that our treatment of the earth amounts to a form of theft.
"What that means morally is that future generations will have a lower quality of life because we overexploited the habitat now," he says.
Tilman cites meat production as one of our most wasteful practices. He says raising grain as feed for beef cattle requires vast amounts of land and uses up lots of petroleum to make fertilizer to raise the crops.
"We're using an organism, cattle, that are highly specialized on living on low quality food, and we're giving them high quality food which their guts aren't able to handle very effectively," he says.
A wiser practice which preserves biodiversity, Tilman argues, is raising cattle on grassland that resembles the prairie. Ten years of research by Tilman and others at the Cedar Creek Natural History Area 30 miles north of the Twin Cities shows pasture with plant variety is more productive, releases cleaner water and tolerates extreme weather better.
Tilman argues saving the planet's biodiversity will require modifying human preferences for driving bigger vehicles, eating more meat and generally consuming more of everything around us.
He says we can't count on the market place alone to send the right signals for preserving biodiversity.
He says the next phase of his research will attempt to show ways for finding a balance.
"Might we be able to not only produce more pulp in a more diverse forest for paper production but maybe have that forest provide other services, cleaner water, store more carbon so we can remove more carbon dioxide from the atmosphere, helping get rid of some of our effects of burning fossil fuel. . . finding ways we can use biological diversity as a tool to help society have a more sustainable world?" he asks.
Two specific proposals emerged at the Paris meeting he attended. One is a 25-year-long effort to catalog all of the earth's species, and another is to spend $25 billion to save the 25 most threatened environments including the Amazon forest.
Funny you should say that! He caught a big turtle ( Not sure what kind, but it had 3 stripes on either side) and he killed it with his knife and then dropped it,still in the shell,onto the fire.
After it was cooked, he chopped the blackened shell away and pulled out some big straps of turtle meat.
Then he said, "And it really does taste just like chicken!"
That confirms my worst fears. I once tutored someone who took something like "Chemistry for Divinity Students".
It was just a way of paying, getting it out of the way, and forgetting it.
We don't know and the libs don't know. It just makes good copy for the anti-human, enviro-religious types. Humans make up the only species that constantly regret their own actions and their very existance.
They did not.
"Do you see any frecked green bazongas?" "No, what's that?" "Aha! They are already extinct!"
review
Let's see if we can whittle it down to just cows, pigs, chickens and dogs. I guess birds can stay. /sarc
(paraphrase)”We don’t know they’re there. We haven’t identified them. But we know they are dying off and mankind is killing them.”
Is that about it? Should I give this more than 10 seconds of my attention?
I’ve been a vegetarian for about 30 years, so I don’t know. But it all LOOKS like chicken to me. :)
But I'll bet they take Grant Applications I, II, III and IV! ;-)
I wouldn't put it past some stooges to try it.
Global warming deniers should snag the Gieco cavemen to impart and educate the populace on the Global warming hoax. They could have that effect without calling it a hoax. Also, they could do mortal combat with the enviro-whackos.
It's like shooting fish in a barrel. Too easy.
Interviewer: Tell us caveman, how does today's world stack up to that of your early ancestors?
What's he going to say? "You want me to say that modern man's technology is causing tremendous harm and hardship for the hunter-gather caveman. Cavewoman and cave-children hit hardest."
Caveman: Yeah right! Like that's goanna happen -- NOT! Sipping mint-juleps poolside is such a hardship. Where do you people come from?!
Red flag. Kook agenda.
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