Underlying the "thing that you have" is probably certificate-based authentication. The token likely contains a digital certificate that identifies you when the PIN is used to unlock it.
Also, tokens can contain a private key that is used to sign an identification request. This step allows (for example) a remote system to negotiate a secure connection with an authenticated user. If it was merely unlocking the certificate, than capturing the certificate would be tantamount to capturing the password.
Without disputing that petroleum consumption contributes, various articles at http://www.junkscience.com/ refute that carbon dioxide emissions are a dominant player, suggesting:
0.11 percent of the greenhouse effect (that is, 3 percent of 3.6 percent) is due to human releases of CO2
50% global CO2 emission reduction would therefore account for a smidge of greenhouse effect
about 99.89 percent of the greenhouse effect has nothing to do with carbon-dioxide emissions from human activity.
Factoring in the other greenhouse gases, the total human contribution to the greenhouse effect is about 0.3 percent.
So... is this corporate propaganda, or is the focus on carbon emissions greatly exaggerated?
No one is disputing a warming trend, only the degree to which human emissions contribute. Of course people are alarmed by the reports, but perhaps a better question might be,
Will restricting emissions slow, stop, or reverse a global warming trend?
After finding a secret level, the space marine finds himself in a bizarre cubist Nazi-era headquarters. Who will he encounter?
Michael Moore, Jim Carrey, Rosie O'Donnell, and Former Iraqi Minister of Information, Baghdad Bob come to mind...
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When cane toads are outlawed, only outlaws will have cane toads!
Underlying the "thing that you have" is probably certificate-based authentication. The token likely contains a digital certificate that identifies you when the PIN is used to unlock it.
Also, tokens can contain a private key that is used to sign an identification request. This step allows (for example) a remote system to negotiate a secure connection with an authenticated user. If it was merely unlocking the certificate, than capturing the certificate would be tantamount to capturing the password.
Who will propose a ban on cell-phones in all public spaces? The general population needs to be protected from the effects of second-hand emissions!
- 0.11 percent of the greenhouse effect (that is, 3 percent of 3.6 percent) is due to human releases of CO2
- 50% global CO2 emission reduction would therefore account for a smidge of greenhouse effect
- about 99.89 percent of the greenhouse effect has nothing to do with carbon-dioxide emissions from human activity.
- Factoring in the other greenhouse gases, the total human contribution to the greenhouse effect is about 0.3 percent.
So... is this corporate propaganda, or is the focus on carbon emissions greatly exaggerated?No one is disputing a warming trend, only the degree to which human emissions contribute. Of course people are alarmed by the reports, but perhaps a better question might be,
Will restricting emissions slow, stop, or reverse a global warming trend?
After finding a secret level, the space marine finds himself in a bizarre cubist Nazi-era headquarters. Who will he encounter? Michael Moore, Jim Carrey, Rosie O'Donnell, and Former Iraqi Minister of Information, Baghdad Bob come to mind...