ND Gain Index : The NDVI is a measure of the performance of an investment portfolio over time. Among the lowest ranked were Chad , Burundi , Eritrea , CAR and the DRC . The celebrated story of the widespread usage of mobile phone has rebranded the continent as a place where emerging technologies can find novel and unanticipated uses . The annual index ranks countries `` based on their vulnerability to climate change.. ... and their readiness to adapt to the droughts , superstorms and natural disasters that climate change can cause ''
ND Gain Index : The NDVI is a measure of the performance of an investment portfolio over time. Among the lowest ranked were Chad , Burundi , Eritrea , CAR and the DRC . The annual index ranks countries `` based on their vulnerability to climate change.. ... and their readiness to adapt to the droughts , superstorms and natural disasters that climate change can cause ''