Fortress Europe: what happens to the refugees sent back to Libya?

The EU’s efforts to stem the flow migration from Africa across the Mediterranean has meant assisting the Libyan coastguard to intercept boats. But what happens when asylum seekers are returned to war-torn Libya? Sally Hayden has spent months investigating conditions in the detention camps. Plus: Jonathan Watts on the UN’s alarming report on the possible extinction of more than a million plant and animal species. Help support our independent journalism at theguardian.com/infocus