Jennifer Marohasy

THERE has been severe flooding along parts of the east coast of Australia with the towns of Grafton and Lismore evacuated over the weekend.   Grafton is towards the bottom of the mighty Clarence River which is completely unregulated.   I can’t find a reliable estimate for the amount of water discharged on average or during flood events.  [...]

WHEN nutrient rich water flows into Lake Eyre it is considered good for the environment, but when nutrient rich water flows into the Great Barrier Reef lagoon it is considered bad for the environment. 
Indeed every time that Lake Eyre in central Australia floods, our oh-so-sensitive-to-nature journalists provide us with the sort of happy purple prose that [...]

DESPITE increased understanding of a number of different climate processes and their impact on a range of different timescales, this knowledge is not being used to inform planning and decision making. This is because long-term climate risk is often viewed only in statistical terms.
For instance, engineering techniques for estimating flood risk, where records exist, are [...]

The picturesque watercourse in the header on the main page of the Politics & Environment Blog, is Cooper Creek. It is a relatively short watercourse (∼8 km), running between Thornton Peak and its mouth, which drains an enormous catchment in one of the world’s highest rainfall areas.

Over these past three days, about 250 mm [...]

Media reports yesterday** correctly drew attention to the fact that there are levy banks within the Macquarie Marshes and that they are depriving key wetland areas of water.
But the stories went on to lump upstream legal and planned irrigation development that makes allocations for environmental flows with legal and illegal levies on grazing land within [...]

I recently reported that the wet season had well and truly arrived in the Daintree, with over 700 mm of rain in five days.
More recently, Jennifer published the Australian mean rainfall total for 2007 at 497 mm, slightly more than the long-term average of 472 mm.
So, there is no question; the Daintree Cape Tribulation rainforest [...]

TOP PRIORITY FOR IMMEDIATE BROADCASTQUEENSLAND TSUNAMI WARNING
Issued at 8:57am on Monday the 2nd of April 2007, by the Bureau of Meteorology
For people in coastal areas of Queensland.
TOP PRIORITY FOR IMMEDIATE BROADCAST
TSUNAMI BULLETIN
TSUNAMI THREAT TO EASTERN AUSTRALIA and Willis and Barrier Reef Islands, Lord Howe and Norfolk Islands.
The Pacific Tsunami Warning Centre in Hawaii has detected [...]

Late last year there were terrible bushfires across north eastern Victoria. Max Rheese sent us a note suggesting there was a need for more prescribed burning.
Now there is isolated flooding.
Following is a note and some photographs from Ralph Barraclough a landholder and a fire brigade captain with land adjacent and surrounded by the Alpine [...]