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Kelp record environmental calamity

Kelp keeps a record of environmental calamity

By studying where kelp populations have been wiped out and replaced, scientists are developing a new way to understand historical environmental destruction.
How cities will fossilize
www.bbc.com

How cities will fossilize

The grand metropolises of 21st Century civilisation will leave a geological legacy that will last for millennia, but some things will endure far longer than others.
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