explain the "concern"
in relation to known paleo-climates
Don't care about ancient history or who is to blame etc...
Bottom line is we are beyond that...
The night time temperature is not cooling as it typically would.
I live in a temperate region, Spring is what it is, cool to warm, with cool nights. The temperature is noticeably not dropping at the normal rate of a night time.
It doesn't matter any more as to who or what is responsible for global warming. Too late for that.
We are heading in to what will most likely be another record hot summer here, pushing top temps to around the 40's C and beyond. We may even see a 48 or even a 50 C.
But it isn't the top temperature that is most concerning as I am attempting to point out. It is the inability to release heat when the sun goes down that is becoming more and more evident.
Example of problem:
Day time temperatures of above 38 C are common enough during summer here but try sleeping when the night time minimum is as much as 38 deg C. with high humidity. ( prediction)
Last year there was one night when the 3 am temp was 34 deg C. Impossible! In 60 years I never experienced such a night in Temperate Melbourne.
Last night the temperature again failed to reduce like it normally would ( even when considering normal variations) and we are not currently in heat wave conditions. ( which would be by far, a worse situation as heat accumulates the situation will become life threatening to any one with out air-conditioning or power to run it)
so.....
The fact that the green house effect is noticeable now is quite disturbing and to me, highly indicative of a rapidly deterioration in atmospheric dynamics. (Melbourne, Australia)
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And the fact that this thread has turned into a climate change thread is also indicative of the demand for a specific category at sciforums.com to be created to allow others to share their climate change experiences and research etc.