Study: Brazil’s Coast 3–4°C Warmer, Sea Levels 2+ Meters Higher 6,000 Years Ago
Across the globe, vermetid gastropods (shelled snails, or mollusks) are a “critical paleo-sea level indicator” for ancient coastline reconstructions (Angulo et al., 2026). [links added]
Along the Brazilian coast, vermetid shell radiocarbon ages indicate the relative sea level (RSL) was “more than 2 m above present” between 6,000 and 7,000 years ago. (The charts shown in the study suggest RSL was 3 to 3.5 meters higher than today during this period.)
Today’s latitudinal warmth threshold for living vermetid gastropod colonies along the coasts of Brazil is 22-23°S.
This is over 5° (550-600 km) north of this species’ warmth threshold (28-29°S) throughout the period when there were “warmer waters during the Holocene climatic optimum.”
Since it is well established that sea surface temperatures decrease by approximately 0.5°C to 1°C for every degree of latitude moving poleward from the tropics, carbon-dated vermetid gastropod presence informs us that this region’s sea surface temperatures were about 3-4°C warmer than today throughout this Early- to Mid-Holocene period.
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very old white guy
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The current crop of so called scientists are lacking in basic critical thinking skills. No matter how often they are shown the truth of any matter they refuse to understand what they are being told or are actually seeing. The agenda and narrative are everything.
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