And that can take a little bit of trial and error."

VOA: special.2010.08.04

"It's a lot of trial and error. It's a process.

VOA: special.2009.05.18

The chairman of the IPCC panel, Rajendra Pachauri, on Saturday called the forecast "a regrettable error,"

VOA: standard.2010.01.23

"This was a human error which should never have occurred, and we are going to do everything possible to see that it is never repeated."

VOA: standard.2010.01.23

He says the error does not alter the broad picture of manmade climate change.

VOA: standard.2010.01.23

In his end of the year speech, Russian President Dmitri Medvedev says his country will develop (Error) Russian President Dmitri Medvedev's comments were broadcast on Russia's state-run television networks.

VOA: standard.2009.12.25

"He is at 50 or below in most surveys, and that is mainly because of the economy, which continues to be stubbornly weak, the unemployment rate is very high and still in double-digits, and as a consequence Obama does not have much margin for error,".

VOA: standard.2010.01.06