New climate report ‘depressing’ reading

DANGEROUS bushfires will rage for longer, torrential downpours will become more common and unrelenting heatwaves will devastate communities across Australia, according to the latest snapshot into the country’s climate.

The 2022 State of the Climate report, released by CSIRO and the Bureau of Meteorology, reveals the continent is 1.47C hotter than it was in 1910.

In addition, sea surface temperatures have increased by an average of 1.05C since 1900, and sea levels are rising at an accelerated rate.

And while Australia has experienced one of the most significant flood periods ever observed during the La Nina event over the last two years, overall there’s been a decline in rainfall between April and October across southern Australia in recent decades.

That’s contributing to longer fire seasons, according to Karl Braganza from the Bureau of Meteorology.

“We’re expecting to see longer fire seasons in the future for the south and east and an increase in the number of dangerous fire weather days,” Dr Braganza said.

The changes have been driven by rising levels of greenhouse gases, predominantly at the hand of burning fossil fuels, with emissions having returned to pre-Covid-19 levels.

CSIRO Climate Science Centre research director Jace Brown said the report made for “depressing” reading, but it was “not new news”.

Environment Minister Tanya Plibersek said the importance of the report was that it was a “call to action”.

“It will take global action. We need to do our share here in Australia,” she said.