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6 results for "PETM"

ZF_5_12 — Paleocene-Eocene Thermal Maximum: Ancient Anoxic Ocean Crisis

The Paleocene-Eocene Thermal Maximum (PETM), occurring approximately 55.8 million years ago (latest Paleocene), was one of the most dramatic and rapid climate change events in the Cenozoic, offering the closest geologica

PETM Paleocene-Eocene Thermal Maximum hyperthermal carbon isotope excursion CIE ocean acidification

ZF_4_08 Verified Oceanography

ZF_4_08 — Ocean Acidification Paleoclimate Record

Ocean acidification — the decrease in seawater pH caused by absorption of atmospheric CO₂ — is not only a modern phenomenon but has occurred repeatedly throughout Earth's history, leaving distinctive signals in the geolo

ocean acidification pH paleoclimate PETM Paleocene-Eocene Thermal Maximum carbonate compensation depth

ZF_1_04 Oceanography

ZF_1_04 — Ocean-Climate Coupling: Paleoceanography

The ocean is Earth's primary climate regulator — absorbing ~93% of the excess heat trapped by greenhouse gases and ~30% of anthropogenic CO₂, storing 50 times more carbon than the atmosphere, and driving glacial-intergla

paleoceanography ice age Milankovitch cycles foraminifera oxygen isotope ocean carbon pump

E_3_10 Credible Cataclysms & Chronology

E_3_10 — Clathrate Gun Hypothesis

The clathrate gun hypothesis proposes that warming of ocean waters or thawing of permafrost can destabilize methane clathrates (also called methane hydrates) — ice-like crystalline structures in which methane molecules a

clathrate gun methane hydrate gas hydrate methane release abrupt warming continental shelf

E_2_13 Verified Cataclysms & Chronology

E_2_13 — Paleocene-Eocene Thermal Maximum

The Paleocene-Eocene Thermal Maximum (PETM) — approximately 55.8 million years ago — was the most extreme rapid warming event of the past 66 million years and is widely studied as a deep-time analog for modern anthropoge

PETM Paleocene-Eocene Thermal Maximum hyperthermal carbon isotope excursion CIE methane clathrate

S_3_01 Future Technology

S_3_01 — Climate Change, Civilization, and Deep-Time Context

Earth's climate has always changed — but the current rate and mechanism are unprecedented in geological history. This document places the modern climate crisis within the deep-time context that the corpus demands: from t

climate change anthropocene PETM Green Sahara tipping points climate refugees

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