Please check out the guidelines before commenting.
I hate to come up with rules like these, but this blog gets a lot of traffic.
Which is a good thing.
But one of the problems with having such a high traffic blog is that the comments are getting too off topic and too contentious.
It’s okay to debate things.
But I think we’re going to have to have some guidelines set up.
That way, we can have a more productive experience on this blog.
I’m sorry I had to set up these guidelines, but they have become necessary for the good of the blog.
Natural History 
Okay, signing off from the target area, may I thank you for all the very interesting material on this excellent blog. It must have entailed a huge amount of time and effort. But it’s like when strangers meet out walking dogs in the hills and a conversation starting with “is it going to rain” evolves into”what are we going to do about Greece”. It’s just about being human.
Thanks again, Peter