Layers of sediment and sludge beneath the seawater in Japan’s Beppu Bay offer clues about the past. Read more at straitstimes.com.
TOKYO – Beneath the seawater in Japan’s Beppu Bay lie layers of seemingly unremarkable sediment and sludge that tell the story of how humans have fundamentally altered the world around them.
Key to their discussions has been picking a site that clearly documents the way we have changed our environment, from contaminating it with plutonium from nuclear tests to littering it with microplastics. He began with investigations of how climate change affected fish populations, with layers of deposited fish scales in the bay’s sediment offering clues about the past.
The bay floor dips down quickly from the shoreline, creating a basin that traps material in the water column and “kind of creates a miso soup”, he told AFP. For a site to be considered a golden spike location, it must meet several conditions, including offering a record of at least the last century, along with specific “anthropogenic signals” like nuclear bomb testing, ecosystem change and industrialisation.
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Japan sea sludge tells story of human impact on EarthTOKYO: Beneath the seawater in Japan's Beppu Bay lie layers of seemingly unremarkable sediment and sludge that tell the story of how humans have fundamentally altered the world around them. The site is among those being considered for designation as a 'golden spike', a location that offers evidence of a ne
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