Hi there, I'm on the team that deployed Pending Changes. We picked 2000 rather arbitrarily, but it actually was a technical limitation driven by our need to limit possible load on the system rather than an editorial decision. Based on rough community consensus, it's actually in effect on far fewer articles as of this writing. See http://en.wikipedia.org/wiki/Wikipedia_talk:Pending_changes/Queue#Using_pending_changes for the community discussion of how and where to apply it.

From the Hydrogen economy article on Wikipedia:

There have also been some concerns over possible problems related to hydrogen gas leakage.[50] Molecular hydrogen leaks slowly from most containment vessels. It has been hypothesized that if significant amounts of hydrogen gas (H2) escape, hydrogen gas may, because of ultraviolet radiation, form free radicals (H) in the stratosphere. These free radicals would then be able to act as catalysts for ozone depletion. A large enough increase in stratospheric hydrogen from leaked H2 could exacerbate the depletion process. However, the effect of these leakage problems may not be significant. The amount of hydrogen that leaks today is much lower (by a factor of 10–100) than the estimated 10–20% figure conjectured by some researchers; for example, in Germany, the leakage rate is only 0.1% (less than the natural gas leak rate of 0.7%). At most, such leakage would likely be no more than 1–2% even with widespread hydrogen use, using present technology.[50]
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[50] ^ a b "Assessing the Future Hydrogen Economy (letters)" (PDF). Science. 10 October 2003. Retrieved 2008-05-09.

The implication there is that even if leakage were a major problem, the gas doesn't escape the planet. Even if it did, and we switched entirely to hydrogen, and consumed 100 times the current rate of energy, I have a hard time believing we'd actually make a dent in the oceans. I'm going to guess that, by volume, the amount of oil that was ever on the planet is pretty trivial compared to the size of the oceans. Unlike what happens to oil when we burn it, most/all of the hydrogen would eventually be converted back into water.

I think it's reasonable to expect an editorial that complains that Flash is "not open" as its first big bold bullet point would somehow address the reason why Jobs thinks we should care. I know why I care, but it's not at all clear why Jobs thinks I should care.

So you're focused on speed, but dont allow native code? Not allowing trusted code is not the same as not allowing native code. See Native Client. Was it really necessary to accuse the people involved of being unqualified and lazy to ask your question?

It's funny, there was just a RadioLab show on NPR on this subject. They talk about another guy who had a different type of brain damage (tumor removal) which seemed to leave him normal at first, but made him horribly indecisive. They figured out that his emotional response center was damaged. Without the emotional push to make a decision, he would never feel pressure or other emotional drive to make the decision, and couldn't do it. The emotional part is apparently just as important as the logical part in making a decision.