"We must identify which environmental exposures and combination of exposures are contributing to increased overall risk in the population."

VOA: standard.2010.08.09

Iranians living outside Iran started contributing to the movement and supporting the movement in more diverse ways than simply posting blog posts.

VOA: standard.2010.06.15

"All of this is contributing to an underground, sort of 'black' economy, which is very difficult for any of us to measure and gauge.

VOA: standard.2010.06.17

"Salt is probably the single most harmful thing in our food, contributing to high blood pressure."

VOA: standard.2010.04.22

Climate scientists think accumulated gases are contributing to global warming and weather changes.

VOA: standard.2009.12.16

The high court is expected to rule soon on a case unresolved from last term involving long-standing restrictions on corporations and labor unions contributing to political candidates.

VOA: standard.2009.10.01

"There may be either a new cause for gastric cancer in that population or perhaps some difference in their Helicobactor Pylori infection that's contributing to a new risk for gastric cancer."

VOA: standard.2010.05.12

The U.N.'s top diplomat in Iraq,Ad Melkert, echoed the council's call, saying the delays are contributing to uncertainty and creating conditions that could be exploited by elements opposed to the country's democratic transition.

VOA: standard.2010.08.04

For instance giving the prize to Mikhail Gorbachev for changing the world completely and now to President Obama who is contributing to improve the international climate, to strengthen the international bodies such as the U.N.

VOA: standard.2009.10.09

We're talking about a vast number of trees that are taken out of forests every year, which are contributing to that one-fifth of global emissions that comes from deforestation and contributing to the loss of wildlife, contributing to the loss of people's livelihoods and contributing to the loss of revenue from governments."

VOA: standard.2010.07.28