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Managing global climate change--and local conditions--key to coral reefs' survival


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Australian researchers recently reported a sharp decline in the abundance of coral along the Great Barrier Reef. Scientists are seeing similar declines in coral colonies throughout the world, including reefs off of Hawaii, the Florida Keys and in the Indo-Pacific region.
The widespread decline is fueled in part by climate-driven heat waves that are warming the world s oceans and leading to what s known as coral bleaching, the breakdown of the mutually beneficial relationship between corals and resident algae.
But other factors are contributing to the decline of coral reefs, as well, including pollution and overfishing.
According to a new study, Local conditions magnify coral loss after marine heatwaves, published in the journal ....

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Arizona Corporation Commission compromises on power disconnection temps, dates


Arizona Corporation Commission compromises on power disconnection temps, dates
ABC15
and last updated 2021-04-15 17:25:20-04
The proposed rules would give utilities two options for disconnection prohibition:
No shutoffs between June 1 and October 15 or,
No shutoffs on days forecasted to be above 95 degrees and below 32 degrees
For the full breakdown on what happened in Wednesday s meeting, catch Courtney s report on ABC15 News at 6 p.m.
A third option, which utilities had historically used, would have allowed them to choose heat warnings from the National Weather Service as a determinate of when to stop disconnections, but was eliminated from consideration.
The decision not to use NWS heat warnings is significant because they are cumulatively issued for fewer days in the year than the other two options, according to Professor David Hondula with the School of Geographical Sciences and Urban Planning at Arizona State University. ....

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