Yes Scott there are HF transmitters all over the planet, even I have two,
one in front of me here and one in my car.
For donks people have wanted to try to strengthen the layers by directing
strong signals at them but all to no avail.

The only way it has been affected is by nuclear blasts at those altitudes.
Didn't last long though, and the effect was to reduce propagation.

From Leo Lane: "Remember, you have in the past given Skeptical Science as a scientific reference. That is conclusive proof of dishonesty."

Like almost everything that Leo Lane posts, this claim is not true. I have not used Skeptical Science as a scientific reference.

There has been one solitary occasion I have referred to the site at all http://forum.onlineopinion.com.au/thread.asp?article=15648#271263 and that was because the site had a copy of a figure from this scientific paper http://journals.ametsoc.org/doi/abs/10.1175/2008BAMS2370.1 that would otherwise be unavailable to readers without a subscription.

Lovely, Leo...

"“John Coleman, meteorologist and co-founder of the Weather Channel, wrote a letter to the Hammer Forum – which held a climate change symposium Thursday night in Los Angeles – outlining his position on the topic of man-made climate change. The main points from the letter, which was picked up by the British publication The Express:
• There has not been man-made global warming in the past, is none in the present, and there’s no reason to fear that there might be any in the future.
• Efforts to prove the CO2 emissions cause climate change have failed.
• There has been no warming over the last 18 years.
• There is no climate crisis, the oceans aren’t rising, polar ice is increasing, polar bears are increasing, and heat waves and storms are not increasing.
• Climate change is a political and environmental agenda item without basis in science."

That would be this John Coleman?

http://sourcewatch.org/index.php?title=John_Coleman

"John Coleman may describe himself as a scientist or even a meteorologist but he is neither. His degree is in media studies"

"Coleman's critics counter that his allegations have little, if any, scientific basis..."

"Coleman claims that he has 30,000 backers in the form of those who signed the Oregon Institute of Science and Medicine petition on global warming, but the National Academy of Sciences called that petition "misleading" and "not based on a review of the science of global climate change, nor were its signers experts in the field of climate science."

Lol!

SM,

We all know Pyne and Abbott are shifty dodgy operators...why don't you tell all the state Premiers that they're not facing budget cuts in health and education.

Yes, Marles was testing the waters yesterday his "might" or "maybe". I note Labor are denying today their policy has changed. Talk about having a bob each way....

I do enjoy your posts, Poirot. Thanks.

Poirot, Coleman spent his working life as an accredited meteorologist. He is 80 years of age, so when he gained accreditation it was before the delusion that a university degree was a demonstration of expertise in meteorology. Most professional people do not keep up their accreditation at his age.
He certainly knows his subject:
“Global Warming, i.e. Climate Change, is not about environmentalism or politics. It is not a religion. It is not something you “believe in.” It is science; the science of meteorology. This is my field of life-long expertise. And I am telling you Global Warming are a non-event, a manufactured crisis and a total scam. “

http://www.desmogblog.com/john-coleman

Do you know if the crooked railway engineer, Pachauri, who heads thefraud-backing IPCC, has kept up his accreditation? What qualification does he need for climate lying? In what conceivable way could his expertise match Coleman’s. You cannot be as stupid as you pretend to be, Poirot