Day 6 (ie .26th May) was one of clear skies, a cool wind, and puffy clouds during the afternoon. The day temperature was around 18 degrees. This is pleasant walking weather in an arid country.
We walked across a plain to the east of the Wirrealpa Range crossing the various creek beds that flowed into the southern end of Lake Frome. I slipped on a rock crossing a creek and fell, jarring my back. I walked slowly behind the camels. We crossed the Arkaroola Blinman Rd for the second time and then rested whilst we picked up a food drop in a creek bed by the side of the road.
I was grateful for the food drop rest as the muscles in both my legs and back were starting to hurt and I was now walking with difficulty. I walked at the back of the camel train.
What was being reinforced as I walked was that what people call drought conditions (ie; lack of rain) was actually the new normal. The rain ie., the big monsoonal rain — is now the exception. The winter rains from the south consist of little more than light sprinkles. The monsoonal rains are the key to life in the northern Flinders Ranges.
This arid country had been drying for 50,000 years. The water in the creeks rarely make it to Lake Frome in the east, or to Lake Torrens in the west. Climate heating is speeding up the drying process. According to the latest UN’s Intergovernmental Panel on Climate Change’s (IPCC) Report Australia’s land area has warmed by about 1.4C since 1910 and are now above anything that could have been caused by natural variation with Australia on track for 2C of warming and its heating faster than the global average. That means that some of the extreme temperatures we are seeing now will be closer to the average by the mid-21st century. Fait accompli.
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