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Paleoclimatology

Ancient ocean currents offer clues to Earth’s Ice Age cycles
Researchers analyzed sediment core samples collected by D/V JOIDES Resolution near Cape Town, South Africa. Their findings uncovered details about the changes in deep ocean temperature and salinity, as well as the mixing histories of waters originating in both the northern and southern hemispheres. Credit: Sophie Hines | ©Woods Hole Oceanographic Institution
Ancient ocean currents offer clues to Earth’s Ice Age cyclesNewsScience

Ancient ocean currents offer clues to Earth’s Ice Age cycles

About a million years ago, Earth’s ice age cycles underwent a dramatic shift, marking what scientists call the Mid-Pleistocene Transition (MPT). This period has long…
Adrian AlexandreAdrian AlexandreNovember 8, 2024 Full article
Ancient volcanoes released ‘cryptic carbon’, driving Earth’s past climate warming
Ancient volcanoes released ‘cryptic carbon’, driving Earth’s past climate warmingScience

Ancient volcanoes released ‘cryptic carbon’, driving Earth’s past climate warming

Deep beneath the Earth’s surface, ancient volcanoes continued to emit carbon dioxide long after their eruptions ended, driving unexpected climate shifts. Research led by Rutgers…
Adrian AlexandreAdrian AlexandreOctober 30, 2024 Full article
Melting Arctic sea ice could disrupt global ocean circulation
Melting Arctic sea ice could disrupt global ocean circulationClimateNews

Melting Arctic sea ice could disrupt global ocean circulation

(UPDATED) - A new study published in Nature Communications has revealed that the melting of Arctic sea ice may disrupt ocean circulation patterns, potentially causing…
Adrian AlexandreAdrian AlexandreOctober 28, 2024 Full article
New insights into climate history: studying cave formations could help improve climate models
New insights into climate history: studying cave formations could help improve climate modelsClimate

New insights into climate history: studying cave formations could help improve climate models

A recent study reveals that our understanding of historical climate patterns, particularly in Southeast Asia, may have been more complicated than once thought, especially when…
Adrian AlexandreAdrian AlexandreOctober 22, 2024 Full article
Arctic ice cores reveal global pollution’s hidden impact
Arctic ice cores reveal global pollution’s hidden impactClimate

Arctic ice cores reveal global pollution’s hidden impact

Researchers from Dartmouth College have uncovered how fossil fuel emissions have profoundly impacted the Arctic’s atmospheric chemistry. Their findings show that pollution reaches the region…
Adrian AlexandreAdrian AlexandreSeptember 25, 2024 Full article
New study reveals 485 million years of Earth’s temperature shifts driven by CO2
New study reveals 485 million years of Earth’s temperature shifts driven by CO2ClimateNews

New study reveals 485 million years of Earth’s temperature shifts driven by CO2

Smithsonian-sparked study co-led by University of Arizona underscores perils presented by unprecedented rate of human-made warming. A new study co-led by the Smithsonian and the…
SourceSourceSeptember 20, 2024 Full article
Fiji coral study reveals Pacific’s highest temperatures in over 600 years
Fiji coral study reveals Pacific’s highest temperatures in over 600 yearsScience

Fiji coral study reveals Pacific’s highest temperatures in over 600 years

International study uses data obtained from the analysis of the honeycomb coral Diploastrea heliopora to reconstruct sea surface temperatures of the Fijian archipelago. The sea…
SourceSourceSeptember 18, 2024 Full article
Microscopic fossils unlock secrets of ancient climate change and its modern parallels
Microscopic fossils unlock secrets of ancient climate change and its modern parallelsScience

Microscopic fossils unlock secrets of ancient climate change and its modern parallels

Recent research led by geologists at the University of Utah sheds light on how ancient climate change, occurring 50 million years ago, can inform our…
Adrian AlexandreAdrian AlexandreAugust 27, 2024 Full article
Greenland fossil discovery reveals increased risk of sea-level catastrophe
Greenland fossil discovery reveals increased risk of sea-level catastropheNewsScience

Greenland fossil discovery reveals increased risk of sea-level catastrophe

Seeds, twigs and insect parts in ice core stun scientists and confirm that center of ice sheet melted in recent past. By Joshua Brown |…
SourceSourceAugust 6, 2024 Full article
The Gulf Stream is wind-powered and could weaken from climate change
The Gulf Stream is wind-powered and could weaken from climate changeClimate

The Gulf Stream is wind-powered and could weaken from climate change

By University College London New evidence of changes to the Gulf Stream during the last ice age could indicate additional sensitivity to future climatic changes,…
SourceSourceJuly 11, 2024 Full article
CO2 puts heavier stamp on temperature than thought
CO2 puts heavier stamp on temperature than thoughtClimateScience

CO2 puts heavier stamp on temperature than thought

By Royal Netherlands Institute for Sea Research A doubling of the amount of CO2 in the atmosphere could cause an increase in the average temperature…
SourceSourceJune 24, 2024 Full article