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Study: Earth's Wobble Wipes Out Species
Climate change, naturally induced by tiny shifts in Earth's rotational axis and orbit, periodically wipes out species of mammals, a study published on Thursday says.
Paleontologists have long puzzled over fossil records that, remarkably, suggest mammal species tend to last around two and a half million years before becoming extinct.
Climate experts and biologists led by Jan van Dam at the University of Utrecht in the Netherlands, overlaid a picture of species emergence and extinction with changes that occur in Earth's orbit and axis. ...One wave of extinction was roughly every 2.4 million years or so and the other was about every million years or so, coinciding with extremes in the cycles of ellipticality, wobble and tilt. ...These were not swift, massive die-out's of the kind that famously wiped out the dinosaurs 65 million years ago, but rather a fadeout of species which could not cope with habitat loss or competition, especially when Ice Ages kicked in. ...As they became extinct, other species emerged.
Also see: Earth Wobbles With the Weather
Originally posted by Cruizer
That same example can be extrapolated for percipitation, minumum temps and all the rest of the various weather-related measurements that go into predicting climate.
Originally posted by bodebliss
Son-a-M,
I don't know what you mean. I'm looking right at my radar screen and I don't see it!
Indeed, elliptical orbit equations have been found to be a better predictor of precession rates than Newcomb's formula, showing about ten times greater accuracyover the last hundred years. Moreover, a binary orbit motion of our sun provides a solution to a number of solar system formation theory enigmas including angular momentum. For these reasons, BRI has concluded our sun is most likely part of a long cycle binary system.
A binary system is two stars gravitationally bound orbiting a common center of mass. The stars can be of the same or differing sizes and orbits can be as short as a few days or as long as thousands of years. The short ones are easy to detect, the long ones difficult, some probably impossible to detect because of the very long observation period required.
Originally posted by Muaddib
I couldn't agree any more with you astrocreep. People need to understand that the climate of the Earth is dynamic and there is no way for mankind to stop climate change. Yes, there will be changes, and we need to work together to adapt to those changes.
Originally posted by Kachina
As Son of Man suggests ... all will be revealed ... but by that time it will be too late for most of humanity.
Originally posted by bodebliss
Normal would be the inter-glacial epoch 150 million year period of no ice caps and temperate climes at both poles.
I would like someone to speak to that.
Originally posted by astrocreep
Those individuals with the ability to speak to the science are being replaced by those who use emotional talking points
Originally posted by soficrow
...............
Also seems like irresponsibility won out. So much for manipulating the masses.
Originally posted by astrocreep
The biggest enemy of the environment is not idustry, my friends..its poverty. Thats evident in our own society as well. I just spent the week working on the East side of Philly. Take a look at the local environment in a wealthy area of a city versus the environment of a poor area and see who is polluting more.
Why do we then have to silence the fact that on a global scale, climate change is something that has always been, is and always will be happening?
...global warming is not a topic that belongs here for it has become a political tool. A tool to obtain grant money and a tool to get candidates elected. To some it has become their religion because they accept it unconditionally and not only refuse to hear any other evidence but will also work to keep it from being brought to light.
That robs us all when they are successful
its why we keep this site up and running.
Originally posted by soficrow
As I understand it, you are saying that because poor areas are more polluted, it follows that the greatest pollution comes from poverty. I disagree with that conclusion.
In fact, the wealthy can afford to live away from pollution - and have the political power to prevent industrial pollution from being part of their local environment.
The amount of pollution in slums and developing nations simply reflects the fact that they cannot afford to live where the air, soil and water are clean, or where the food is uncontaminated.
The poor are stuck with polluting industries - and the environments that industrial pollution creates - they do not have the political power to protect their own environments, and cannot afford to move away.
The poor cannot afford the cost of living in clean areas - not the rents or property values, or travel to their place of work.
Being forced to live in a polluted environment is a consequence of poverty, but poverty does not create pollution - industry does.
There is room for both observations:
1. Change of all kinds occurs on this earth, naturally; and
2. Human activity, especially industrial activity, has negative impacts that can - and should - be prevented.
Acknowledging the truth of BOTH observations leads to the obvious question:
What can we do to survive the changes as a species, and protect what we can, out of respect for all cultures and all life on the planet?
Working together to answer the question will lead to a cleaner, healthier and better planet - and may just save the human species from extinction.
Oh. I didn't know that. I thought ATS was about denying ignorance, not denying alternate viewpoints and protecting the corporate world order.
Originally posted by astrocreep
Then why are the countries with no industry some of the worst polluted on the planet? A complex question with a really simple answer; poverty is indeed the cause of a polluted environment. It is because the people cannot afford to clean the soil and water that they must pollute to survive.
The argument I give is trying to attribute all climate changes to mankind.
...Do you not believe that denying ignorance is the act of correcting a misleading? Thats all I am doing. I don't support big business nor do I think pollution is okay by any means. I just know many of the suppositions that are being fed to the public are not factual and are not meant for the greater good. They are made by small people with small lives all in the name of political agendas which, 100 years from now will be as meaningless as the ones from 100 years ago...and guess what? WE will still be adjusting to our environment and still will have to clean up after ourselves.
Originally posted by soficrow
We seem to be mostly on the same page - but I think you're dead wrong here.
Mining, drilling, manufacturing - all stress the environment and create pollution either directly or indirectly, locally and globally.
Could you please provide some examples to illustrate your claim?
...I honestly just don't get how you could come to that conclusion.
The problem is with the extreme positions:
1. Mankind is responsible for all climate change;
2. All climate change is natural.
By dismissing ALL evidence describing industrial man's role in affecting climate and maybe exacerbating or speeding natural cycles - you are making the same error you criticize in others. IMO.