The work of translators is often overlooked when world's leaders and negotiators meet to discuss climate action. Their sometimes gruelling work helps keep the talks flowing.

Blind-deaf people are often forced to live in a small and isolated world. But can a new glove open the way for easier communication? Lesley Ogden Evans reports.

Scientists have been trying to automatically translate languages for almost as long as computers have been in existence. So why is it so hard?