<
https://theconversation.com/global-coral-bleaching-caused-by-global-warming-demands-a-global-response-228022>
"The fourth global coral bleaching event, announced this week, is an urgent
wake-up call to the world.
While the US National Oceanographic and Atmospheric Administration’s
announcement is not unexpected, it’s the second global mass bleaching in the
past decade. It heralds a new reality in which we can expect more frequent and
severe bleaching events as ocean temperature records continue to be broken.
Cycles of decline and recovery are normal for coral reefs, but the windows for
recovery are now shorter. Stress events such as marine heatwaves are coming
faster, with less warning. These events are also more widespread.
The latest global sea surface temperatures remain above long-term averages.
As the southern hemisphere shifts into winter, the northern hemisphere’s
tropical oceans enter summer. Heat will start to accumulate, this year from a
higher base. Reefs are more likely to be under greater heat stress earlier than
in previous years."
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
