A bunch of old interests

Well, looking around the net this morning, there are a bunch of stories about some of my long term interests, as previously mentioned on this blog:
1.    Methane apocalypse soon?    A Russian scientists tells the Independent that he hasn’t seen such large methane plumes in the Arctic Ocean before:

"Earlier we found torch-like structures like this but they were only tens of metres in diameter. This is the first time that we've found continuous, powerful and impressive seeping structures more than 1,000 metres in diameter. It's amazing," Dr Semiletov said.
"I was most impressed by the shear scale and the high density of the plumes.  Over a relatively small area we found more than 100, but over a wider area there should be thousands of them," he said….

Another scientist doing the research says:

"Methane released from the Arctic shelf deposits contributes to global increase and the best evidence for that is the higher concentration of atmospheric methane above the Arctic Ocean," she said.
"The concentration of atmospheric methane increased unto three times in the past two centuries from 0.7 parts per million to 1.7ppm, and in the Arctic to 1.9ppm. That's a huge increase, between two and three times, and this has never happened in the history of the planet," she added.

Well, that’s far from encouraging.
Update:  both Revkin and James Annan say this was a beat up.  I hope so.

2.  Small nuclear shows some promise.   Another study indicates that making small, modular nuclear power may be a better way of deploying nuclear quickly, rather than building the expensive mega plants of old.
This is what I suspected on a hunch.   Why aren’t I running the world? 
If the world was serious about greenhouse gases, there ought to be a scientific and technological commission either run by the US, or preferably, internationally, to identify the most promising path to rapid deployment of nuclear with systems that have as a primary feature passive safety.  But a lot of things have to be considered:  sources of uranium and efficiency of uranium use, the type of waste they make and its recycling and disposal, new nuclear designs and how far off testing and certifying they are; ease of export of the technology, etc.   This is the sort of leadership needed:  not just leaving it up to the hopeless mishmash of competing ideas around at the moment.
3.  Marijuana does hurt the brain.   Some pretty interesting research from Melbourne, in which 12 year olds had brain scans, and then they were re-scanned at 16, after some of them had started using marijuana.
The most surprising thing is that the size of part of the brain at 12 seemed gave an indication as to whether they would try it:

“What we found is that only the OFC predicted later cannabis use, suggesting that this particular part of the frontal lobe increases an adolescent’s vulnerability to cannabis use. However, we also found no differences in brain volume in other parts of the brain that we have shown to be abnormal in long-term heavy cannabis users, confirming for the first time, that cannabis use is neurotoxic to these brain areas in humans.”

The OFC plays a primary role in inhibitory control and reward-based decision making; previous studies of adolescent cannabis users have demonstrated subtle deficits in problem-solving, attention, memory and executive functions.

“In adult cannabis users, decreased activation of the OFC has been associated with faulty decision-making, suggesting that a reduced ability to weigh the pros and costs of one’s actions might render certain individuals more prone to drug problems,” Professor Lubman said.

I guess in a hundred years time, school career counsellors will just be examining scans and assigning kids to jobs.
4.   Primordial black hole search.   Some scientists are looking at Kepler satellite data to see if they can pick out small, primordial black holes as a possible source of missing dark matter.  I kind of hope they don’t find it, as I don’t want the Earth to bump into one.
5.  Ocean acidification and the Bering Sea:  Skeptical Science looks at ocean acidification and its apparent (or potential) effects in one part of the world.  Not good.