Swan is optimistic that humans can take the necessary collective steps to address climate change and put the brakes on global warming.

VOA: standard.2009.12.10

He says it may be necessary to call on the Association of Southeast Asian Nations to mediate an end the diplomat dispute.

VOA: standard.2009.11.11

The government insists bans on rallies and hundreds of arrests have been necessary to prevent large gatherings that intelligence agencies believe will be attacked.

VOA: standard.2009.03.14

But what the White House sees as a necessary,thoughtful process to arrive at the best-possible decision on an eight-year conflict is seen as dangerous "dithering" by Republican legislators.

VOA: standard.2009.11.23

That accord mandated by the U.S.Congress is a necessary prerequisite for American aerospace firms to bid on a pending Indian purchase of 126 multi-role fighter jets, potentially the largest-ever arms sale.

VOA: standard.2009.07.20

"The focus of that dialogue is on Iran's behavior and uppermost in our minds is taking the measures necessary, with our partners in the region, to maintain their security and their stability,in particular against Iranian subversive activities,"

VOA: standard.2009.05.05

"The Temple Mount was open to Muslims that wanted to come and pray only from the age of 50 upwards, and women of all ages, This was necessary to prevent any disturbances from taking place on the Temple Mount."

VOA: standard.2009.10.05

Their task is to find common ground, including on reduction of greenhouse gas emissions, promotion and transfer of new more eco-friendly technology and the necessary funding to make this possible, especially for the less developed and poorer nations.

VOA: standard.2009.12.08

Speaking via Skype,she says no. "I think further studies will be necessary to show whether the differences we've demonstrated depending on delivery mode of babies when they first emerge into the world actually carry over time, and whether those differences might contribute to health outcomes."

VOA: standard.2010.06.30

"Black women, who are more likely to be uninsured, are living in communities where there is limited access to the healthy foods and exercise and activity that is necessary from childhood on to reduce the likelihood of obesity and chronic illnesses."

VOA: standard.2010.06.23

"The delivery of capability here in Haiti is a balancing act that requires troops on the ground to distribute humanitarian assistance, the supplies for them to distribute and the mobility necessary for them to be able to reach the communities that are most stricken,".

VOA: standard.2010.01.19