Open Thread 25

Time for a fresh open thread! (the old one being weighed down by over 1000 comments).

The Open Thread is a general discussion forum, where you can talk about whatever you like — there is nothing ‘off topic’ here — within reason. So get up on your soap box! The standard commenting rules of courtesy apply, and at the very least your chat should relate to the general content of this blog.

The sort of things that belong on this thread include general enquiries, soapbox philosophy, meandering trains of argument that move dynamically from one point of contention to another, and so on — as long as the comments adhere to the broad BNC themes of sustainable energy, climate change mitigation and policy, energy security, climate impacts, etc.

Open Thread 24

The last Open Thread has screamed past 1000 comments, so time for a new one… (And for those who are wondering why there have been so few posts on BNC recently, well… there are reasons. I will post again soon[ish] to explain more, and discuss the future directions of this blog/website. Meanwhile, on with the productive discussion!)

The Open Thread is a general discussion forum, where you can talk about whatever you like — there is nothing ‘off topic’ here — within reason. So get up on your soap box! The standard commenting rules of courtesy apply, and at the very least your chat should relate to the general content of this blog.

The sort of things that belong on this thread include general enquiries, soapbox philosophy, meandering trains of argument that move dynamically from one point of contention to another, and so on — as long as the comments adhere to the broad BNC themes of sustainable energy, climate change mitigation and policy, energy security, climate impacts, etc.

Open Thread 23

The last Open Thread is feeling a tad dated, so time for a new one…

The Open Thread is a general discussion forum, where you can talk about whatever you like — there is nothing ‘off topic’ here — within reason. So get up on your soap box! The standard commenting rules of courtesy apply, and at the very least your chat should relate to the general content of this blog.

The sort of things that belong on this thread include general enquiries, soapbox philosophy, meandering trains of argument that move dynamically from one point of contention to another, and so on — as long as the comments adhere to the broad BNC themes of sustainable energy, climate change mitigation and policy, energy security, climate impacts, etc.

2012 BNC stats in review

The WordPress.com stats helper monkeys prepared a 2012 annual report for this blog.

(Note: about mid-way through the year, the site closed WP comments and moved them to the BNC Forums — this led to a redirection of many pageviews to the new site).

Here’s an excerpt:

About 55,000 tourists visit Liechtenstein every year. This blog was viewed about 430,000 times in 2012. If it were Liechtenstein, it would take about 8 years for that many people to see it. Your blog had more visits than a small country in Europe!

Click here to see the complete report.

Open Thread 22

The Open Thread 21 has passed 500 comments and is getting a little bloated, so time for a new one.

The Open Thread is a general discussion forum, where you can talk about whatever you like — there is nothing ‘off topic’ here — within reason. So get up on your soap box! The standard commenting rules of courtesy apply, and at the very least your chat should relate to the general content of this blog.

The sort of things that belong on this thread include general enquiries, soapbox philosophy, meandering trains of argument that move dynamically from one point of contention to another, and so on — as long as the comments adhere to the broad BNC themes of sustainable energy, climate change mitigation and policy, energy security, climate impacts, etc.

You can also find this thread by clicking on the Open Thread category on the cascading menu under the “Home” tab.

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There was quite a bit of discussion in the previous OT on radiation levels and the Fukushima evacuation zone. Relevant to this is the recent announcement that Japan will lift the entry ban on some cities within the prefecture. To quote:

In areas where annual radiation measurements are below 20 millisieverts per year, a government safety guideline, residents will have free access to their homes during the day and will be allowed to return permanently at the earliest opportunity post-decontamination. Where readings are between 20 to 50 millisieverts annually, evacuees will also have unrestricted access during the day although their permanent return will come later. In areas where measurements top 50 millisieverts, residents will not have free access and they will not be allowed to return for a minimum of five years.

A past BNC guest poster, engineer Chris Uhlik, analysed the situation a private email distribution list, and I thought his summary with respect to LNT (linear no-threshold hypothesis of radiation damage to living organisms) was very useful. With Chris’ permission, I reproduce it below:

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The official position of every regulatory agency & scientific body, and even the people who will tell you “we don’t know what’s going on under 50 mSv”, the weight of the evidence favors LNT.

Here’s what I think is going on:

Under 50mSv/year we can’t find any epidemiological data to support LNT. There is simply too much noise and other effects to see sub-0.5% changes in cancer rates in populations where the variations from other effects (smoking, stress, chemical exposures, etc) are in the range of 20–45%.

The rates of different kinds of cancers are affected differently by radiation. Some kinds appear to increase while others decrease. Some kinds of cancer are more treatable than others and thus result in different mortality rates, even if the occurrence rate increases. Simple statements like “cancer death rates show a LNT response to radiation exposure” are way too simplistic to be true, but such statements are easy to base regulations around. When regulators feel a need to support a regulation with some math, they’d rather choose simple math than more-correct, but difficult to understand and explain math.

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