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Hopefully the Queensland Brushbox trees that we have all over the municipality will cope with the changed climate since they come from Queensland.

I lived in Melbourne once.  It may have been the part of Melbourne where I lived & worked, but my impression was that Melbourne was leafier & greener than Sydney, so it was with surprise that I read the following headline – ‘A warming Melbourne may need to consider a Sydney tree-change.’ See – http://bit.ly/2tWet7g

The article shows two thermal images of Elizabeth Street Melbourne in January 2017 when the temperature was 36.7 degrees. One image shows the asphalt temperature reached 60 degrees, while the other image shows a temperature of 34.5 degrees in the shade of street trees.

University of Melbourne Clean Air and Urban Landscape research fellow David Kendal said the average temperature of the city has risen 2 degrees in the past 50 years, driven by a combination of climate change and increased development.”

Climate change projections for Melbourne predict the temperature will rise a further 3.5 degrees by 2100.

To cope with the changed conditions, tree species for streets & parks will also need to be changed to cope with the increased heat & to not create hotter urban heat islands.  The Northern European species currently planted across Melbourne will find it hard to survive, as will some Eucalyptus species that grow in the southern part of Australia.

I’ve been wondering when this issue will be addressed in Sydney, especially in the now Inner West Council municipality.  Sydney is historically 4 degrees warmer than Melbourne & we can expect the temperature to increase beyond this to a new norm.

Living in Sydney by the end of the century will be like living in Rockhampton, subtropical Queensland, if global temperatures are allowed to rise by four degrees – the current trajectory of climate change.”   I presume Rockhampton has some very different tree species than we do in Sydney.

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