It has been suggested that before irrigation runoff into the Macquarie Marshes was 460,000 megalitres and that this has been reduced to 395,000ml by irrigation. But Ian Mott has argued that pre-settlement runoff into the marshes would have been much … [Read more...] about Where has all the Marsh Water Gone?
Archives for August 2006
Aquaculture is the fastest growing food producing sector in the world according to those promoting a fish farmer's conference in Adelaide this week. Farm Online have reported that there are 1,000 delegates at the conference and aquaculture is being … [Read more...] about Farmed Fish are our Future: Conference in Adelaide
According to an article entitled 'Arctic dips as global waters rise' published at BBC News, sea levels in the Arctic have been falling by a little over 2mm a year. It goes on to explain that while it is well known that the world's oceans do not … [Read more...] about Sea Levels Falling in the Arctic?
"Australia has the third largest fishery zone of any nation. It also has the most over-managed, heavily restricted and least productive fishery sector in the world," according to marine biologist Dr Walter Starck. "The total Australian wild caught … [Read more...] about Shifting the Environmental Impact of Fishing Somewhere Else
Easter Island has been described by Jared Diamond as the "clearest example of a society that destroyed itself by overexploiting its own resources". Prof Diamond has told and retold the story and drawn a parallel between the ecological disaster he … [Read more...] about Rats Destroyed the Forests on Easter Island: Terry Hunt
Jen, I've noticed your recent thread on the long-term hydrological drought affecting eastern Australia. I've whipped off a few charts for you which put this into an historical context based on rainfall data going back to 1900 (some limited earlier … [Read more...] about Drought & Temperature: An Update for Australia from David