Why are Ethiopia and Egypt joining BRICS?

The BRICS bloc of developing nations agreed this week s to admit six new countries. The countries Argentina, Egypt, Iran, Ethiopia, Saudi Arabia and the United Arab Emirates - are set to join in January. Can this counter Western dominance?As thousands of UN troops speed up their pull out of Mali, despite a deteriorating security situation. We talk to BBC Arabic’s Feras Kilani the first journalist to travel to Northern Mali since French forces ended their military operation there two years agoPlus why are more airlines adopting the use of sustainable aviation fuel? We hear from an expert based in Kenya