Gregory Moore . Articles Trees: Our greatest allies against floods but also tragic victims As the floodwaters recede, mountains of debris are left behind – sheets of plaster, loose clothes, mattresses and, of course, trees. Some debris I’ve seen in floods includes massive tree trunks weighing 5 tonnes of more, bobbing along like corks in the rapidly flowing waters. The years condemn: Australia is forgetting the sacred trees planted to remember our war dead On Anzac Day each year, Australians remember those who served and died in wars and conflicts. We may attend a dawn service, go to a march or lay a wreath at a war memorial. But across Australia lie living war commemorations you may pass every day, without realising their significance. Why there's a lot more to love about jacarandas than just their purple flowers Every spring, streets across Australia turn purple with the delicate, falling flowers of jacarandas. This year, they’ll likely be flowering over Christmas.