In the graphs previously posted on TOD regarding where our natural gas will be coming from, a large component in the future years is always "to be discovered." And yet I can't find a link to any of the graphics... does anyone who knows where they are want to post a link to one for me? The article implies the argument:

We've been frequently discovering natural gas, so naturally it's safe to assume that we'll always continue to find enough natural gas.

That would be one fault of underlying logic. The other fault would be that it doesn't mention the likely costs to harvest the gas we find. Unless natural gas is an unlimited resource (do the abiotic oil people also believe in abiotic natural gas?), eventually there won't be any to find. Much more relevantly as we continue to drill for gas, the easy and large spots will all have been taken, and either we won't be able to supply enough (too few rigs to drill enough small wells), or it will become too expensive (the industry has to pass on the cost of the new rigs needed to drill more wells per year to keep up).

Natural Gas in North America has peaked. And just like when Texas oil peaked in the early seventies there's increasing drilling activity for natural gas. But all the wells are smaller, so there's less gas produced despite putting more effort into finding it.

Natural gas, just like oil, will not just disappear over night. However it will at the very least become more costly to find more as we harvested the cheapest gas first.

Your observation should be of concern yes, until it is put in context. The US only has a FOUR year supply of oil left. We use 20 million barrels a day which is over 7 billion barrels a year. Our reserves are 29 billion (source BP website). So, the presumption is that we will, as we did with oil, start to import natural gas in a large way. As has been discussed, this is dangerous and difficult but looks increasingly likely. Even more likely is a turn to coal, which the US has plenty of (27% of the worlds total of 22,700 Quadrillion BTUs =5,690 quads.

At 1 trillion barrels of oil left globally - that entire allocation is only 5,205 quads and the entire world natural gas reserves are 6,343 trillion cubic feet which equates to 6,507 quads.

So, the US has rooughly equivalent BTUS stored in its coal as the entire world has in oil or natural gas. Can you say Fischer-Tropsch in a big way? Hello, greenland ice sheet. (and I live in Vermont)