marine heatwaves

common kelp (pictured) has taken over from the giant kelp forests that used to dominate tasmania’s coastline

Australia’s marine heatwaves provide a glimpse of the new ecological order

For the second year in a row, a stubborn high-pressure system over the Tasman Sea was warming the surface of the ocean to above-average temperatures, forming a marine heatwave, wreaking destruction and providing a glimpse of the new ecological order in the marine Anthropocene. Globally marine heatwaves are becoming more frequent and prolonged and affecting biodiversity, according to new research published in Nature Climate Change this week.

australia’s fire seasons are longer and more severe

Australia experiencing more heat, longer fire seasons and rising oceans

State of the climate report points to a long-term increase in the frequency of extreme heat events, fire weather and drought — Australia is experiencing more extreme heat, longer fire seasons, rising oceans and more marine heatwaves consistent with a changing climate, according to the Bureau of Meteorology and CSIRO’s state of the climate report. …

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dead sea fan coral

Restricting global warming to 1.5°C would ‘halve’ risk of marine heatwaves

Marine heatwaves could become 41 times more likely across the globe by 2100 than in pre-industrial times if little is done to stop greenhouse gas emissions, a new study finds — Such a surge in heatwaves could push “marine organisms and ecosystems to the limits of their resilience and even beyond, which could cause irreversible …

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scripps pier in san diego, california

Sea life in ‘peril’ as ocean temperatures hit all-time high in San Diego

Between 1982 and 2016, the number of ‘marine heatwaves’ doubled, and likely will become more common and intense as the planet warms, study finds — Even the oceans are breaking temperature records in this summer of heatwaves. Off the California coast near San Diego, scientists in early August recorded all-time high seawater temperatures since daily …

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great barrier reef

Heat Waves, More Than Coral Death, May Cause Fish to Flee Reefs

A study over a broad swath of the Great Barrier Reef shows that warming waters directly cause fish and invertebrates to leave the reef, making it harder for coral to recover from bleaching events — It’s no secret that global warming is bringing dramatic changes to coral reef ecosystems. Scientists have widely believed that habitat …

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gondwana rainforest after wildfire

Ecosystems across Australia are collapsing under climate change

The Great Barrier Reef has become a notorious victim of climate change. But it is not the only Australian ecosystem on the brink of collapse — Our research, recently published in Nature Climate Change, describes a series of sudden and catastrophic ecosystem shifts that have occurred recently across Australia.   These changes, caused by the …

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