cathy flynn, rlobal that we need them to. cathy flynn, global director— that we need them to.y flynn, global director of climate change i that we need them to. cathy flynn, global director of climate change atj global director of climate change at the un, thank you for your insight. we will keep you up—to—date is more develop man is come in. russia is the world s largest producer of rough diamonds. they are one of the few major exports still untouched by sanctions imposed in response to president vladimir putin s invasion of ukraine last year. critics say revenue from the industry helps finance the war. but now the european union and the g7 are about to impose a ban on them. our correspondent sofia bettiza reports. these glitzy videos are produced by a mining company in siberia. a third of the world's diamonds come from here. when russia invaded ukraine, foreign sanctions hit russian coal, gas, vodka, caviar, but these stones have continued to be exported all over the world. the european union has held off from a ban largely because belgium was keen to protect this city, antwe