Homo erectus lasted until about 70,000 years ago (to about the Toba event).
Homo neanderthalensis was around from 250,000 years ago, to maybe 30,000 years ago.
Archaic Homo sapiens sprung up, as you stated, about 200,000 years ago - with modern man firmly established about 60,000 years.
Why is the sapiens line the only human species left? Because we adapted to ongoing environmental change. After all, Homo sapiens means "smart guy" ;^)
Just for fun ...
LOOK OVER THE DESCRIPTIONS OF THE FOLLOWING TWO HOUSES AND SEE IF YOU CAN TELL WHICH BELONGS TO AN ENVIRONMENTALIST.
HOUSE # 1:
A 20-room mansion (not including 8 bathrooms) heated by natural gas. Add on a pool (and a pool house) and a separate guest house all heated by gas. In ONE MONTH ALONE this mansion consumes more energy than the average American household in an ENTIRE YEAR. The average bill for electricity and natural gas runs over $2,400.00 per month. In natural gas alone (which last time we checked was a fossil fuel), this property consumes more than 20 times the national average for an American home. This house is not in a northern or Midwestern "snow belt," either. It's in the South.
HOUSE # 2:
Designed by an architecture professor at a leading national university, this house incorporates every "green" feature current home construction can provide. The house contains only 4,000 square feet (4 bedrooms) and is nestled on arid high prairie in the American southwest. A central closet in the house holds geothermal heat pumps drawing ground water through pipes sunk 300 feet into the ground. The water (usually 67 degrees F.) heats the house in winter and cools it in summer. The system uses no fossil fuels such as oil or natural gas, and it consumes 25% of the electricity required for a conventional heating/cooling system. Rainwater from the roof is collected and funneled into a 25,000 gallon underground cistern. Wastewater from showers, sinks and toilets goes into underground purifying tanks and then into the cistern. The collected water then irrigates the land surrounding the house. Flowers and shrubs native to the area blend the property into the surrounding rural landscape.
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HOUSE # 1 (20 room energy guzzling mansion) is outside of Nashville, Tennessee. It is the abode of that renowned environmentalist (and filmmaker) Al Gore.
HOUSE # 2 (model eco-friendly house) is on a ranch near Crawford, Texas. Also known as "the Texas White House," it is the private residence of the President of the United States, George W. Bush.
So whose house is gentler on the environment? Yet another story you WON'T hear on CNN, CBS, ABC, NBC, MSNBC or read about in the New York Times or the Washington Post. Indeed, for Mr. Gore, it's truly "an inconvenient truth."
Circa 2007
2) Overpopulation
To fully grasp how badly the “population bomb” predictions failed, you have to realize that the biggest demographic challenge today is declining population. Japan faces a demographic death spiral in which declining population and fewer workers leads to economic stagnation, which discourages people from having kids, which makes the problem worse. After decades of a “one child” policy, China’s working age population is also starting to decline, and it is conventional wisdom that the country is going to “grow old before it grows rich.”
What you wrote doesn't change the fact that the population of humans is increasing rapidly. They are crowding out other species. Some people have made wiping out entire species their career.
There are plans to drill for oil in the Arctic Circle which used to be impossible. There is much less ice up there than before. People don't notice the big changes because so far it's mostly at the poles. Glaziers are disappearing. Global warming is for real. And obviously the human race is causing it, especially thanks to China where the pollution is way out of control.
The solution? I'm against wind power because the turbines are wiping out birds. Solar is OK but not useful up north in the winter. I suggest natural gas is the way to go, it's much less polluting than oil.
Oil had been safely produced from the North Slope of Alaska since the late-1960s. At one time, the Pruhoe Bay giant oil field supplied of 25% of US domestic needs.
Offshore exploratory drilling in the Chukchi Sea in 2012 was delayed due to heavier-than-normal sea ice.
i don't know. this is NOT a global warming thread and there is tons of contradictory evidence about global temperatures, highs, lows, etc. Your question has NOTHING to do with failed environmental predictions nor does it have to do with garbage in the Pacific. Why don't YOU anwer the question, idiot, since you are the one who posed it. then tell us what your point is, and how it relates to the thread, you smug, mindless, twit
I think you are a better poster than to resort to ad hominem attacks. One of the reasons I opened this topic is because the other large topic strayed away from the science and became nothing but bickering.
well, then just read my post without the ad hominems. I happen to believe the environment, the planet we occupy, is important. People ignore threats to it because some past predictions have not come true. This is really sad. It would be like a person with cancer who had some other diagnoses which turned out not to be accurate. The cancer still remains. People who pretent otherwise are nothing less than EVIL.
There are huge threats to our planet, and pointing out some threats that have not materialized DOES NOT CHANGE THAT!! (ad hominen attacks withheld)
i don't know. this is NOT a global warming thread and there is tons of contradictory evidence about global temperatures, highs, lows, etc. Your question has NOTHING to do with failed environmental predictions nor does it have to do with garbage in the Pacific. Why don't YOU anwer the question, idiot, since you are the one who posed it. then tell us what your point is, and how it relates to the thread, you smug, mindless, twit
I think you are a better poster than to resort to ad hominem attacks. One of the reasons I opened this topic is because the other large topic strayed away from the science and became nothing but bickering.
well, then just read my post without the ad hominems. I happen to believe the environment, the planet we occupy, is important. People ignore threats to it because some past predictions have not come true. This is really sad. It would be like a person with cancer who had some other diagnoses which turned out not to be accurate. The cancer still remains. People who pretent otherwise are nothing less than EVIL. (Another ad hominen attack? lol)
There are huge threats to our planet, and pointing out some threats that have not materialized DOES NOT CHANGE THAT!! (ad hominen attacks withheld... but the screaming continues?)
I think the owner of that 50,000 square foot house (see house above) is hypocritically evil.
And for the record... you should care about the environment without the global warming alarmism ... anyway.
I mountain bike... Im outdoors...a lot. One of the sadest things I see is a pile of fast foot trash left on the picknic table or ground with in walking distance of a trash can at any of the local trails I ride. Along with many of the bikers that use the trail... we see trash we pic it up ... and the best moment to do that to is pick it up... right in front of the people who had just left it! :)
So...
Before 1940
or
After 1990
do the majority of city heat records across the US have occured?...
pick one :)
well, then just read my post without the ad hominems. I happen to believe the environment, the planet we occupy, is important. People ignore threats to it because some past predictions have not come true. This is really sad. It would be like a person with cancer who had some other diagnoses which turned out not to be accurate. The cancer still remains. People who pretent otherwise are nothing less than EVIL.
There are huge threats to our planet, and pointing out some threats that have not materialized DOES NOT CHANGE THAT!! (ad hominen attacks withheld)
"Threats" are often imaginary. There is an old military adage that, "The threat is greater than the execution."
That is how the AGW propaganda works ... create boogiemen with calamitious effects ... instant crisis ... increased government funding for those who cry, "The sky is falling!" (or, "The Earth has a fever," in this case).
And their propaganda has worked on the mind set of the general population... at least to a degree (It certaintly has worked on governments to throw lotsa tax payers $$$ at it).
And ... thats where my question comes in. Since I saw that stat (greatest city heat records across the US... before 1940 or after 1990)... I started asking people that same question. During my line of work (physical therapy) I meet a lot of people (patients, nurses, co workers, etc) and so far...
no one has picked... BEFORE 1940... as having the majority of city heat records across the US.
In fact... many people are at least mildly shocked to learn that not only did the majority of these heat records occur before 1940... but over 70% of those records did.
So... my point.... Environmental alarmist ... especially those like Al Gore and his ilk... have convinced many that global warming/climate change is far worse than it really is.
At least to a degree! Heat records! Man you're on fire! Hey, see what I did there....
LOL.... dude...that was not on purpose lol.
and YOU are on fire my friend for catching that. :D
They don't give that answer because
1) most were not alive then, and
2) it is not in keeping with the current propganda
Though it had several causes, including poor farming techniques, the "Dust Bowl" of the central US occurred during those high temp years of the 1930s.
They don't give that answer because
1) most were not alive then, and
All my patients are over 60 with most being in there 70's and 80's... they have lived through it, but all that propaganda has convinced them.
2) it is not in keeping with the current propganda
True... those alarmists who have been posting here knew where the answer was pointing... and it wasnt in the current propaganda direction :)
Though it had several causes, including poor farming techniques, the "Dust Bowl" of the central US occurred during those high temp years of the 1930s.
In fact, the majority of those pre 1940 cities across the US heat records...occured in the 1930's decade.
:)
Most
Most of the sea level change from the melting continental ice sheets has already happened - naturally and without human input.
Greenhouse gases in the atmosphere have prehistorically been many times higher than they are today. The Earth has a natural greenhouse in operation; Mars, on the otherhand, apparently lost it's ability to maintain one - and became a cold, lifeless, dead planet.
Water vapor is a much more effective greenhouse gas. Most of the time in prehistoric past, the Earth has had a warmer, moister, lusher environment. I argue the current climate is not ideal, and there is no sense in trying to "preserve" it. Climate has no steady state or equillibrium.
Merlin66 said "To begin with, and I'm sure you would find quite laughable, I think evolution theory is probably the most ridiculous hoax that's ever been perpetrated on modern day man. An atheist who believes sublime order just suddenly appears out of a pool of muck is quite deluded in my mind. Design must have a designer."
Well, Jamie may find it quite laughable, but I agree with you about evolution. But I guess that is the subject of another thread.
Merlin66 said "To begin with, and I'm sure you would find quite laughable, I think evolution theory is probably the most ridiculous hoax that's ever been perpetrated on modern day man. An atheist who believes sublime order just suddenly appears out of a pool of muck is quite deluded in my mind. Design must have a designer."
Well, Jamie may find it quite laughable, but I agree with you about evolution. But I guess that is the subject of another thread.
I don't recall denigrating anyone's faith, Ricky.
Not suddenly. And there isn't sublime order in nature.
Btw, one of the most prominent evolutionists in Spain is also a devote Christian who doesn't miss a mass. He's also a solid bastion against the creationist offensive in Europe.
EVOLUTION UNDER THE MICROSCOPE
If you don’t have the longevity to witness evolution in larger species then take a look at the faster smaller varieties.
The Superbugs, evolving in their reproduction at an alarming rate. Some are now resistant to all antibiotics.
no, Jamie you did not. He said you might find his believe in evolution laughable. I just meant even if you do believe in evolution, I don't
Homo Sapiens ( Us Guys) have been around for 200,000 years. We are born and bred for the cooler climate.We need to provide for :the massive displacement of populations,increase of the most virulent diseases,loss of agricultural infrustructure,etc.... Refusing to believe that it's happening would be a very grave sin.
Before you mention our African origin,we evolved in the tropics of a cooler world.