Market dynamics and enforcement failures

The Malian government and Canadian mining firm Barrick have ended their two year tax dispute and have agreed a multi-million dollar settlement. So what does the agreement involve?

Why did a volcano in Ethiopia erupt after laying dormant for more than 10,000 years?

And we find out why Madagascar's beloved lemurs are at risk.

Presenter: Nyasha Michelle Producers: Stefania Okereke, Sunita Nahar and Yvette Twagiramariya Technical Producer: Craig Kingham Senior Producer: Patricia Whitehorne Editors: Alice Muthengi and Andre Lombard