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As the Swiss bank Credit Suisse is fined $475m for participating in Mozambique鈥檚 tuna bonds fraud, on Business Weekly we find out how the southern African country was devastated by the scandal. Also, we hear how a decaying oil tanker marooned off the coast of Yemen could trigger a major environmental and humanitarian disaster. The SFO Safer is loaded with hundreds of tons of crude oil - so why is it just being left to rot? Plus, we report from a climate conference in Edinburgh where delegates are being encouraged to come up with new ways to cut carbon emissions, including a innovative and surprising diet for cattle. Business Weekly is presented by Lucy Burton and edited by Matthew Davies.

(Image: A shoal of tuna swimming in the ocean. Credit: Getty Images)