Finds that observations over the past decade continue to support the finding that the area experiencing much above - normal maximum and minimum temperatures in recent years has been on the rise, with infrequent occurrence of much below - normal mean maximum and minimum temperatures (climatesignals.org)
The frequency of leakage varies from infrequent occurrences to a continuous flow. (pottytrainingconcepts.com)
Pielke has a more defensible argument — «'' Thirty years is not an appropriate length of time for a climate analysis, much less finding causal factors like climate change,» — and he's bright enough to cherry pick data sets with a lot of noise and statistically infrequent occurrences that do require more than 30 years (look! (realclimate.org)