The state of weather and climate extremes 2021
March 14, 2022 9:08 am 1 CommentThe year 2021 saw a wide range of extreme weather and climate events impacting Australia.
The year 2021 saw a wide range of extreme weather and climate events impacting Australia.
At any one time, Earth’s atmosphere holds only about a week’s worth of rain. But rainfall and floods have devastated Australia’s eastern regions for weeks and more heavy rain is forecast. So where’s all this water coming from?
Tipping points exist in the climate system, and it is very unlikely that all tipping points are known. Different tipping points are understood with different levels of confidence, they operate on different timescales, can interact to trigger cascades of abrupt changes, and some tipping point changes are irreversible on timescales of centuries to millennia.
Conditions in the Indian Ocean can affect the risk of Australia experiencing droughts, floods, marine heatwaves and bushfires and alter the prospects for rainfed agriculture in some parts of the country. Reliable forecasts of conditions in the Indian Ocean a season in advance would help us predict upcoming changes in the risk of climate extremes in some parts of Australia. However, producing such forecasts requires us to better understand, and more accurately model, relevant Indian Ocean climate processes. There is... View Article
While the role of climate change is hard to pin down in Australia’s biggest floods, we know flooding often strikes our east coast. Building greater resilience to severe flooding would help lessen their impact.
Every little bit we do to limit carbon emissions might mean one less flood and one less person who has to rebuild.
Rapid decarbonisation is needed to reduce further warming of the planet. It’s not too late to avoid the most dangerous climate change impacts.
You may think Australians are good at surviving the heat. But the climate you were born in doesn’t exist any more. Sadly, our farms, wildlife, and suburbs will struggle to cope with the extreme heat projected for coming decades.
To give low-lying island nations a fighting chance at surviving the coming floods, all nations (including Australia) must drastically and urgently cut emissions.
This paper focuses on a case study to provide a methodology for how the costs associated with an extreme weather event may be shared between citizens and envisage how such a system could look in future.