Juan Diez's family have owned their vineyard for 100 years – but this summer they lost 60% of their harvest thanks to a wildfire. He says he's lost "hundreds of thousands" of euros – and he knows of other similar winemakers who've "lost it all" in a summer plagued by brutal evidence of climate change. CGTN's Ken Browne visits Juan to hear his story. #fire #spain #wine #climatechange