Biodiversity for the people

An increasingly common road sign for our future

Crack open the champagne, pass out the cigars – we have a birth to celebrate! Well, actually, many births. According to the United Nations’ Population Division, the world’s population has just reached seven billion. But the celebrations have undercurrents of despair. With human population pressure cited as one of the biggest stressors on global sustainability, how many more people can the earth realistically support? And given that the majority of people live in urban areas (with urbanisation a massive stressor in itself) is there anything can be done? Or, more importantly, is there anything ethically that can be done? Read more of this post

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What value an old tree?

Typical park with old tree in Duffy Canberra

Large, old trees are a familiar part of the suburban landscape, protected for their environmental and economic benefits.  But do they provide biodiversity benefits too?

It’s easy to get lost in Canberra’s suburbs: streets curve and dogleg in bewildering patterns that make a map a necessity in unfamiliar areas.  But what is the reason for this tangle?  Although I would not presume to understand what goes on in an urban planner’s mind, my guess is that part of the answer comes down to the presence of remnant eucalypts, i.e. large, old trees.

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