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Why did rainfall increase in the third year of the recent triple-dip La Niña?

May 9, 2024 3:09 pm Published by Comments Off on Why did rainfall increase in the third year of the recent triple-dip La Niña?

It seems counterintuitive that rainfall increases in the later years of a multi-year La Niña event. Yet, this is what occurred during the recent triple-dip La Niña. Even more interestingly, this increase happened despite no strengthening of La Niña in the tropical Pacific. So, what's the reason behind it?

The heat is on: what we know about why ocean temperatures keep smashing records

April 16, 2024 5:44 pm Published by Comments Off on The heat is on: what we know about why ocean temperatures keep smashing records

To us, a warmer ocean might feel pleasant. But the extra heat manifests underwater as an unprecedented series of major marine heatwaves, which can lead to mass death or mass migration for marine mammals, seabirds, fish and invertebrates and cause widespread coral bleaching.

Why is Australia’s east coast copping all this rain right now? An atmospheric scientist explains

April 5, 2024 5:02 pm Published by Comments Off on Why is Australia’s east coast copping all this rain right now? An atmospheric scientist explains

Parts of Sydney were drenched in more than 100mm of rain overnight and the main dam that supplies the city’s drinking water is expected to spill in coming days. At least one man has died in Queensland floodwaters after torrential rain. This wild weather is caused by the "Black Nor'easter".

A 20-year ‘mega-drought’ in Australia? Research suggests it’s happened before – and we should expect it again

April 3, 2024 10:15 am Published by Comments Off on A 20-year ‘mega-drought’ in Australia? Research suggests it’s happened before – and we should expect it again

Natural variability in Australian rainfall can produce “mega-droughts” lasting 20 years or more. If we add in human-caused climate change, it suggests future droughts will be far worse than we imagined.

What we know about last year’s top 10 wild Australian climatic events – from fire and flood combos to cyclone-driven extreme rain

March 12, 2024 2:40 pm Published by Comments Off on What we know about last year’s top 10 wild Australian climatic events – from fire and flood combos to cyclone-driven extreme rain

In 2023, Australia was hit by a broad range of particularly intense events, with economy-wide impacts. Here's a summary of 10 major extreme events from last year, ranging from early fires to low snowpack to compound events.