Twenty-one nations around the world recently joined forces to better understand and prevent greenhouse gas emissions from farms.

VOA: special.2010.01.05

An American nonprofit organization helps young people around the world to understand important issues, and each other.

VOA: special.2009.11.12

"I think the world need to understand that this is the new challenge of the 21st century, and this is the new war,"

VOA: standard.2009.05.10

"It is about the ability to understand our world, to harness and train that human capacity to solve problems and think critically a set of skills that informs the decisions we make throughout our lives."

VOA: standard.2009.11.24