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Climate Change

Koala Population in South East QLD - Assessment 1D

Justin Leach
Koala Population in South East QLD
Assessment 1D

This model shows the different aspects in South East QLD that affect both the growth and decline of the koala population in the region and then attempts to simulate the declining trend of the koala population with reference to these different factors. Please note: the values associated with the koala population are in no way 'real' but are a means to get my point across of the ever decreasing population.

The once thriving population of koalas on Queenslands Koala Coast has dwindled since 1996 from approximately 6000 koalas to just under 2000 koalas in 2010 according to the Queensland Government's Department of Environment and Resource Management. However these figures may be even lower than stated in the report and the Australia Koala Foundation believes that these figures have been skewed so as to not have the koala be listed as vulnerable under the federal government's Environmental Protection and Biodiversity Act.

Department of Environment and Resource Management (2012). Koala Coast Report 2010. Accessed from:

Moore, Tony (2012). Conservation Group Claims Koala Numbers Fudged. Accessed from:

Koalas Urbanisation Climate Change

  • 6 years 12 months ago


Capitalism is in crisis and climate change disruption is now beginning to hit the bottom line. Insurance companies know this well. According to a report by the Bank of England, insured losses have risen from $10 000 million in 1985 to $50 000 million in 2015. Climate change cannot be reversed, and extreme weather events  will undoubtedly get worse in the future strengthening the disruptive effects shown in the CLD.  Another dynamic is that companies will continue to automate and, as The Economic Policy Institute has shown, fail to reflect  productivity gains in workers' salaries. The result, stagnating salaries is disastrous for demand, given that capitalism needs endlessly rising demand and consumption. A further serious problem is that as climate change gets worse there will be increasing demands for companies to assume their responsibility and bear the costs of negative externalities.  The CLD shows these factors which are likely to lead to the collapse of the system: when capitalism can no longer generate 'capital' it has stopped to serves any useful purpose. 

Capitalism Economic Collapse Climate Change

  • 2 years 6 months ago

Clone of Accelerated Global Warming

I Ketut Tastra
There is now substantial evidence that three unstoppable reinforcing feedback systems that can only accelerate global warming have been triggered in the Arctic. R2 illustrates a process whereby frozen methane hydrate,  which exists in enormous quantities on the seabed of the shallow Arctic Ocean shelf, is breaking up as the ocean warms. This leads to methane gas, a greenhouse gas about 20 times more powerful than C02, bubbling up to the surface. R1 shows that as the ice cover of the ocean melts and shrinks, less sunlight is reflected back into space and more is absorbed by  the ocean, warming it as a consequence. The warmer ocean water and warmer air temperature will then melt more ice, but it will also break up more methane hydrates.   R3 describes a similar process where melting permafrost releases methane into the atmosphere, making the situation even worse. These processes are multiplicative, they reinforce each other.  Below are links to three articles that provide  evidence that this is going on now. Systems thinking tells us about reinforcing feedback loops and the associated exponential growth. Taking this and the evidence provided by the articles into account the conclusion clearly points to increasing and accelerated global warming. The recent Paris agreement on global warming may have come too late!

Global Warming Climate Change Methane Release

  • 2 years 6 months ago