We have a Copper Beech about 45 years old. Australia has been having one of its worst droughts on record. This January when temperatures were in the high 30's (Fahrenheit) the tree in the space of 2 weeks, shed all its leaves. Obviously distressed. It has never done this before, usually shedding leaves in Autumn around June/July. Was this a temporary phenomenon or with global warming is it likely to recur? Is the Copper beech suitable for a hot, fairly dry area?