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Originally posted by mirageofdeceit
Why the 70s for this rise to start??? Why not 150 years ago??? Why the 70s?
In the year 1900 the Earth was home to about 1.6 billion people. The total had grown by 600 million in the 100 years since 1800, the year that the first billion was reached; but the change in the 19th century gave no hint of things to come. By the middle of the present century another billion had been added, in the remarkably short span of only 50 years.
Moreover, and significantly, 80 percent of the growth had taken place in the world's poorer, or "developing," nations. In 1995, but 45 years later, world population had risen by an additional three billion, with most of the increase, as before, in Asia, Africa, and Latin America.
The dramatic fashion in which new numbers have been added to the world's population since 1950 is shown in this figure. While it took the several million years of human history to reach the first billion, and 130 years to reach the second, today each new billion is added in but 11 years.
www.atmos.umd.edu...
Originally posted by mirageofdeceit
But this clearly breaks down in the 1970s.
Hmm...... The Industrial Revolution started 150 years ago (the alleged cause for global warming). We've actually be cleaning up industry for decades. It is cleaner now than ever. Why the 70s for this rise to start??? Why not 150 years ago??? Why the 70s? In terms of the Earth, 30 years is pico seconds in human terms. There is another cause, and it is not humans or CO2.
Originally posted by traderonwallst
Again...terms like "can", "suggest" and "could"
Not to definitive if you ask me.
Originally posted by melatonin
Originally posted by traderonwallst
Again...terms like "can", "suggest" and "could"
Not to definitive if you ask me.
It's the language of a scientist. We are not talking about mathematical proofs. We accept that all our insights have some degree of uncertainty of a sort of Baysian form.
I have difficulty getting concepts of scientific uncertainty over to science undergrads, so I don't expect any great acknowledgment here.
We are not omniscient, we leave that sort of thinking to idiots who write news articles like the one that laid the basis of the OP
[edit on 12-12-2007 by melatonin]
Originally posted by NuclearPaul
I've got a funny feeling "global warming" was invented to serve someone's agenda. Sure the world is going through changes, but I seriously doubt we will ever be told the truth why by our politicians.
Back to the topic, Cows produce more greenhouse gases then that of cars so should we tax the cows as well? If you look at history you will see Earth temperatures moving higher and lower so this means it is natural. The temperature jumping a .5 degrees so what? that was in the 1970's.
Originally posted by Flyingdog5000
You need to cite your (no doubt peer reviewed) source saying that cows create more greenhouse gases than cars. Everyone agrees that earth's temperature fluctuates, but the difference is that the fluctuation is currently occuring at a rate several orders of magnitude faster than it normally does.