Negotiators have agreed to a global phase-out of chemicals that run some air conditioners and refrigerators, but are also big contributors to global warming. That has countries and researchers scrambling to come up with clean and affordable alternatives.
There's deep outrage over the thefts in a nation still healing from devastation caused by the deadly virus.
'To really understand khat you have to chew it.'
There's a lucrative trade in albino body parts, which are sold for use in witchcraft in Malawi, Tanzania and Mozambique.
Residents and environmentalists say the Oscar-lavished film crew damaged the fragile desert ecosystem in Namibia.
Kizza Besigye, detained repeatedly over the past week, says that recent elections were rigged.