If you go to the trend maps at the BoM website you get a series of maps showing the trends of rainfall, temperature, sea surface, and pan evaporation across Australia over the 20th century.
By selecting Mean Temperature from the drop down menus, and Australia, Annual season, and the period 1910-present (2005), and you can display an at-a-a-glance graphic representation of effects of global warming for those criteria.
The trend clearly is to warming, and we know that is currently at 2°C per decade. By playing around with the seasons you can see that summer, winter and autumn all show warming and cooling in what seems to the untrained eye to be a relative equilibrium, but spring is different. Spring is clearly when the warming is happening.
How much of that is due to land clearing over the 95 years? If carbon dioxide is not being transformed into furious spurts of spring growth by plants and trees, because they have been cleared, then it becomes apparent that there is a build up of heat-retaining atmospheric carbon dioxide carrying over into the next seasonal cycle, causing the warming trend from year to year. How much of a contribution comes from emitting into the atmosphere, and how much of it is because carbon-dioxide is not being taken out of the atmosphere by photosynthesis?
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