If you look up a definition of global warming (in English) on the Web, you will find hundreds upon hundreds of different ones!
Go ahead. Don't be afraid to check for yourself. Do a search on any (or all) major search engines using the keywords "definition global warming". You will see what I mean.
Definition global warmingThe global warmingWeb Site
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Basically, global warming is:
"an overall increase in the temperature of the earth's atmosphere".
I did not include the qualifier "significant" to the word increase, because that is open to debate within the scientific community.
Most sources will imply, or state in a given context, that:
The problem with the many definitions you will find on the Web is (at least) twofold, thus maintaining a permanent state of confusion, both within the public (through the media) and within governments.
One problem stems from the fact that 99% of the definitions you will find on the Web include, as part of the definition, ...
one or more causes and/orone or more effects.
The other source of problem is that the world's scientific community does not agree on
the existence of a global warming,what could cause a global warming,what effects a global warming would have.
Be PreparedGlobal WarmingThe WordsDefinition
It is no wonder then that one is hard put to find one, all-encompassing, definition of global warming!
I even read, in more than one official governmental publication, that global warming could mean warmer in some parts of the globe, while other parts are colder than usual!
Granted, but for how long? The dynamics of the atmosphere would not let any given region of the globe stubbornly remain cooler than the rest for very long ... certainly not decades!
In my humble opinion, we either have "global" warming or "regional" warming. Not global warming measurable (detectable) only in some regions, nor regional warming extrapolated to the entire globe (as local evidence of a global warming)!
The definition of global warming comes in many flavors. It is a reflection of human nature at its best ... or worse, depending on your point of view.
Is there, or is there not, a global warming, as I defined it above?
In an effort to help clarify the issue, I started by looking at the observed data, rather than looking at the interpreted versions.
To that end, I recently undertook two studies using official Canadian meteorological observed data. I published the results here, on my Web site. (For more on data availability, see here).
I found that the atmosphere over Canada has been cooling slightly since the early sixties! Could this mean that, during all these years, Canada has been an exceptionally cool region of a warmer global atmosphere?
Does this new fact fit the definition of global warming given at the beginning of this article?
I'll let you think it over, in light of what I have offered above, and the global warming information you will find elsewhere on this Web site.
keep a sharp weather watch and an open mind,
at all times.