Amid renewed debate over bottom trawling, decades of marine research suggest the balance between fishing and conservation needs revisiting.

Australia may enter spring with a highly flammable landscape – and no room for complacency.

Our war game simulations showed how vital it is to protect shipping routes across the entire ocean, not just in waters close to Australia.

It’s hard to know exactly how big an issue this is today, whether this is becoming more common or how much it costs taxpayers. But here’s what we know so far.