Therefore,better and more timely information on these phenomena are essential to make decisions on climate variability and change.

VOA: standard.2009.08.30

Scientists think that such unseasonal temperatures are the result of both global warming and natural climate variability.

VOA: standard.2009.09.03

"And what we found is that there was a large variability in outcome among centers, that ranged between and 60 percent at five years."

VOA: standard.2010.07.14