Beef farmer Glenn Morris only had to look up to know the world was changing.
During a heatwave in 1998, Mr Morris stood on a cattle property in the NSW Hunter Valley and saw the trees cowering.
"At that point it was the hottest year on record and I was watching mature gum trees just get scorched by the hot winds," Mr Morris told AAP.
That moment spurred him into action: he got his Masters in su...
