Banjar locally we are experiencing a similar cooling trend which has been evident for the past two years. Right now in mid afternoon in December the temp at my place is 27C which is a very cool maximum for a summer day. And this is not a one off, the temperatures are consistently remaining below average, with the heaviest frosts last winter for many many years. There is no warming trend here whatsoever but as mentioned if anything there is a slight cooling trend.
I see that recent global measurements also appear to indicate no significant temperature rises this year. So with CO2 levels rising slowly how can this be if greenhouse theory is correct ? Logical answer: it's not correct.