Sunday, September 20, 2020
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Doctoral students Daniel Miller, in the water, with Helen Habicht and Benjamin Keisling, handle two recaptured sediment traps from an unusually deep lake in central Maine, where they collected 136 sediment samples spanning the 900-year time span to reconstruct the longest and highest-resolution climate record for the Northeastern United States to date.
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Geoscientists reconstruct ‘eye-opening’ 900-year Northeastern U.S. climate record

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Yellowstone National Park
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Surviving one of Earth’s most extreme environments

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Future climate analogs for the years 2020, 2050, 2100 and 2200 according to three well-established models. If greenhouse gas emissions are not curbed, the study says, the climate will continue to warm until it begins to resemble the Eocene in 2100. Credit: Courtesy of the authors
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Humans may be reversing the climate clock, by 50 million years

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Planktonic foraminifera, such as these collected in the Gulf of Mexico, form the base of many marine and aquatic food chains.
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Climate, life and the movement of continents: New connections

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The Indus civilization was the largest—but least known—of the first great urban cultures that also included Egypt and Mesopotamia. Named for one of their largest cities, the Harappans relied on river floods to fuel their agricultural surpluses. Today, numerous remains of the Harappan settlements are located in a vast desert region far from any flowing river.
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Climate change likely caused migration, demise of ancient Indus Valley civilization

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Thylacoleo carnifex
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Climate change the likely killer of Australian marsupial lion

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T, temperature; S, salinity; P, phosphate; N, nitrogen salt; Si, silicate; E, extracellular enzyme; POC, particulate organic carbon; DOC, dissolved organic carbon. Credit: ©Science China Press
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Scientists propose that vibrios have significant roles in marine organic carbon...

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Vavilov Ice Cap in the Russian High Arctic
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Unprecedented ice loss in Russian ice cap

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Natural magnesite crystal (4 microns wide).
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Faster way to make mineral to remove carbon dioxide from atmosphere

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Iron-silica particles helped shield cyanobacteria like these, which played a key role in the oxygenation of Earth's atmosphere according to new research from UAlberta.
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Iron-silica particles unlock part of the mystery of Earth’s oxygenation

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Artistic depiction of early Earth blasted by solar system debris.
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Chemical footprint in present-day atmosphere mimics that observed in ancient rock

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biotite
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Platinum is key in ancient volcanic related climate change

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Continental plates around Greenland.
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Icy Greenland’s heated geologic past

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Herðubreið Volcano in Iceland
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Minerology on Mars points to a cold and icy ancient climate

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A conceptual rendering suggests how Earth's land elevations and oceans may have appeared during the assembly of Kenorland, left, and later, right, after the Great Oxygenation Event. A University of Oregon-led study has potentially narrowed the window on when significant amounts of land emerged from under the ocean's surface.
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Land rising above the sea 2.4 billion years ago changed planet...

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Localization and geometry of the "Unit 2" corresponding to the sediment body originated by the Zanclean mega flood.
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Scientists find new evidences of the megaflood that ended the Messinian...

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the central range of Taiwan
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Mountain erosion may add CO2 to the atmosphere

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The Pinnacles of Gunung Mulu in Borneo
climate

New source of global nitrogen discovered

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The San Francisco Bay shoreline, where yellow indicates areas where a projected rise in sea level (SLR) will result in flooding by 2100. Red shows where local land subsidence (LLS) will combine with SLR to increase the flood-prone areas.
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Sinking land will exacerbate flooding from sea level rise in Bay...

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Chinese loess plateau
climate

Desertification and monsoon climate change linked to shifts in ice volume...

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