There is a catch-22 involved in some forms of resource planning. Take, for example, helium (as discussed recently). As of now, we only know of one place from which to get it - certain natural gas deposits. We have no idea where, or if, it might be found elsewhere.
One perspective is to say: “For all [...]

All the helium on Earth arose from natural fission of uranium and thorium in the planet’s crust and mantle. We can access it only through certain natural gas deposits - many of them in Texas - which contain enough of the gas to make it possible to isolate. This is the helium of every high-voiced [...]

The people who memorize thousands of digits of pi generally strike me as more inhuman than impressive - not at such tasks does the normal human mind excel. Nonetheless, being able to recall ten digits or so might allow you to win bets at geekier parties and, if that can be achieved painlessly, it may [...]

Al Gore recently gave a highly interesting speech on the future of energy in the United States. None of the points made in it are especially new, but he does a good job of tying together a great many important themes.
Here are some key points:

Because of climate change, “the future of human civilization is [...]

Continuing our long debate, here is another entry.
It seems to me that there are four possible long-term outcomes of the conflict between preventing climate change and travelling long distances quickly:

We come up with a way to keep flying without doing too much climatic harm. This could be sequestration of carbon from biomass, it could be [...]

Research being done off Lundy Island, in the United Kingdom, shows how quickly some marine ecosystems can begin to recover when fishing is discontinued. A five year old marine protected zone has resulted in the lobster population increasing sevenfold, as well as benefits to other species. This is consistent with the kind of larger scale [...]