Thank for your reply, kindly notice that IPCC also say that: "Climate…is the statistical description in terms of the mean and variability of relevant quantities over a period of time ranging from months to thousands or millions of years. (cont.)", which is for serious research meaningless.

Compare this with the different approach by AMS, with opening sentence: “climate is the slowly varying aspects of the atmosphere–hydrosphere–land surface system” Also the rest is useless for a work in a scientific manner. Here are more discussion about the matter: http://www.whatisclimate.com/index.html

All the best, and it interested kindly take also note of a letter to NATURE 1992

http://www.whatisclimate.com/1992-nature.html