You cannot because you will be revealed as inconsistent and flailing about looking for anyone to support your unsupported assertions about AGW.

That report you cite has no concrete data nor links to any concrete data to support its motherhood assertions.

Really you'd be great as a spruiker of the benefits of snake oil but little else

And ant define climate.

lolololol

when the warmist apologise for the failed predictions they have made over the last 40 years we will know that they have learn't something.

I'm glad that Naval personnel could measure the consistency of the atmosphere; imajulianutter, 600 years ago. Temperature was not measured until about 1880 in the US. I think you confuse weather with climate. Climate is the aggregate of weather that has been measured over many years. AS suggested before subjective attitudes to what is experienced weatherwise won't provide an analysis of what is happening climate wise.
About a week ago a Republican was suggesting that a school child with a thermometer could prove climate change wrong. Something that just defies logic.

imajulianutter, your sea captains of days of yore would not have been able to measure sea ice in the Arctic which has been thinning over a number of years. Also, they would not have been able to assess the continuing loss of multi year ice in the Arctic.

imajulianutter, if the same principle is used against your sailing abilities and allied knowledge as you use against climate scientists; then, we can conclude you know nothing. That is the principle that deniers are constantly stating.

It has been stated that the comments made by the NCA provides nothing but motherhood statements; if you notice the statements made are referenced. Meaning that what is written is somewhat like an iceberg, with statements at the top with the references providing the bulk of the evidence below.
Please provide a document provided by skeptical scientists that has over 3,000 references.

imajulianutter
“Warmair tell me were the climatic conditions for today’s glider pilots the same as the climactic conditions for glider pilots in the times of James Cook in 1750, Drake in 1580 or the Portuguese of earlier times?”

The simple answer is thermals were probably on average not as high by about 200 ft which is not the sort change that you would notice without extensive detailed data.

Clouds are caused by rising air which is what we glider pilots need to climb, and thus fly cross country. Knowledge of clouds types is very useful to both glider pilots and the sea going kind. The wind is crucial to all aspects of gliding particularly in relation to landing and takeoffs. It also provides lift when it is deflected upwards by obstacles such as cliffs, mountains and even different air masses. Gliding is only sailing but in 3 dimensions.

“My knowledge of meteorology, weather and climate comes from books written by officers of the Royal Navy. A body of knowledge which stretches back over 600 years of experience.”

My first introduction to meteorology came from the Admiralty Manual of Seamanship; I also did some sailing off the west coast of Ireland in open boats.
See Clew Bay
http://2.bp.blogspot.com/-o5lMCltAmxs/TkAKCl7IQpI/AAAAAAAAGoo/kiIJrViqM08/s1600/clewbay.jpg

I am a big fan of observation and this is just what the great sea captains of old did, the ships log of the old sea captains were precisely that. Observations on their own are very useful, but when combined with theory become infinitely more useful. In the days of sail the sea captains usually started as midshipmen and were generally given a pretty good education for the times. Captain Cook was very well educated despite his humble beginnings.

Conditions at sea have changed in recent times, this is not the sort of change you would pick up on with out studying the data from many sources.

http://www.smh.com.au/environment/climate-change/wilder-winds-less-rain-as-roaring-forties-become-furious-fifties-20140511-zr9b1.htm

imajulianutter, you may be interested in this film clip which provides some fairly new ideas about weather patterns and the influence of the Arctic on those weather patterns.

https://www.youtube.com/watch?feature=player_embedded&v=RtRvcXUIyZg