Author Archives: Carl Campbell

What’s happened to Arctic amplification (AA)? Eight days ago the Arctic temperature average was +4.0C degrees, today a bare 0.2C. This puts it below the global average for a change, instead of up to seven times greater: The Arctic region … Continue reading →

What a world of difference one week can make! Last Sunday I happened to notice how extremely warm the Arctic anomaly was, and figured it deserved a special climate letter. This is what I saw: Now, one week later, the … Continue reading →

Abbreviated climate letters will be posted on weekends from now on while daily changes in Arctic temperature anomalies are being investigated. These original image collections could prove to have value as archives. As described in recent letters, the Arctic’s air … Continue reading →

Out of curiosity, I have been doing more research on temperature trend comparisons. Is Arctic amplification (AA) actually adding to the overall results for the Northern Hemisphere? If so, would this not be speeding up the overall results for the … Continue reading →

We are now engaged in a daily analysis of Arctic Amplification (AA), with the special intent of investigating the role of precipitable water (PW) as a principal cause of any unusual warming.  Everything is illustrated with imagery provided by Today’s … Continue reading →

The Climate Letter is now devoted to investigating one of the possible sources of Arctic Amplification (AA). This is a unique opportunity for me to contribute something of value to science, which makes the project a personal priority. I want … Continue reading →

For at least the last 800,000 years it is an established fact that whenever the Earth was engaged in a prolonged period of global warming the Arctic region was likely to warm up two or three times more than the … Continue reading →

For the past two years I have spent most of my time developing theories that interpret the greenhouse energy effects of all the precipitable water (PW) held in the atmosphere. These letters have largely been engaged in marking the progress … Continue reading →

It’s a pretty extreme day for Arctic Amplification (AA). I thought I had better preserve this set of images from the weather maps, and there is no better place to do so than right here. I’ll keep it as short … Continue reading →

My letter two days ago (CL#2137) was devoted to a review based on a definitive new report about Arctic Amplification (AA). This is a scientific phenomenon of great scientific interest because of its grossly exaggerated effect on the average global … Continue reading →