Hearing news of the alleged illegal interstate waste dumping, aired on Four Corners last Monday, was a bit of a blast from the past. As it transpired the EPA’s director of waste management, Steve Beaman, was one of the first EPA employees I encountered back in the early 1990’s.
At the time the issue was logging in the Murrah catchment and concerns about the adequacy of what was then Forestry’s Environment Pollution Licence. One of the concerns was soil erosion and how the volume (tonnes) of soil lost after logging was being calculated.
Forestry relied on the broad map of geology, reproduced below, but a bit blurry. However the geology in the ellipse, where four compartments were being logged, wasn’t consistent with the map. After visiting the site and taking samples, Steve Beaman agreed the geology was not consistent with the leucogranite and sandstone indicated on the map.
However, Mr Beaman couldn’t say what sort of rocks they were because he had never seen them before. In one of these compartments, after the first large rainfall event, the majority of soil disappeared, leaving behind a course grained white quartz.
It was a couple of years after this that the EPA dropped the geology thing and allowed forestry to determine if soils were dispersible, rather than use the published soils data.
While one trusts the Independent Commission Against Corruption puts an end to the waste rort, the land degradation and pollution from logging is arguably just as corrupt. Two of the compartments, including the white one, were later put into Biamanga National Park.
Arguably the greatest advance in feral animal control over recent times has been the feral cat grooming trap or ‘felixer’. According the the information brochure “. . . Feral cats are the greatest threat to native wildlife in Australia. They have been implicated in at least 27 mammal extinctions across Australia and currently threaten more than 100 native species, including mammals, lizards and ground nesting birds. ”
To address this situation ” . . . The Ecological Horizons grooming trap uses sensors to detect the presence of a feral cat and sprays a lethal dose of toxic gel onto its fur from up to 4 metres away as it is walking past. The feral cat instinctively grooms the gel and in doing so ingests the lethal dose of the poison and dies.”
While looking forward to the deployment of these units at a bio-regional scale, the technology may have other useful applications. In particular closing a gate when a cat or fox is detected.
Such a device would enable one or more entrances in a fence to be kept open, for much of the time. Hence other species like kangaroos and wallabies could get into and out of fenced areas. The same applies to reintroduced species, should they breed up.