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Novità scientifiche Aprile 2009



28/4/2009  The pacemaker of major climate shifts - Geophysical Research Letters

27/4/2009  Anthropogenic osmium in rain and snow reveals global-scale atmospheric contamination - PNAS

24/4/2009  Penultimate Deglacial Sea-Level Timing from U/Th Dating of Tahitian Corals - Science

24/4/2009  Arctic Fossil Reveals a "Walking Seal"
- Science

"Scientists have found the first skeleton of a land-dwelling relative of seals, sea lions, and walruses. The 20-million- to 24-million-year-old Arctic fossil sports webbed feet instead of flippers, providing a long-sought glimpse of what such animals looked like before they dove into the sea...."

Crediti: Alex Tirabasso,
Canadian Museum
of Nature;
(inset) Stefan Thompson


23/4/2009  Identification d’une micrométéorite exceptionnelle - IPEV

20/4/2009  A sea ice free summer Arctic within 30 years? - Geophysical Research Letters

20/4/2009  Inadvertent climate modification due to anthropogenic lead - Nature Geoscience

17/4/2009  A Contemporary Microbially Maintained Subglacial Ferrous "Ocean" - Science


Crediti: Benjamin Urmston


Leggi anche:
- Unusual Antarctic Microbes Live Life on a Previously Unsuspected Edge - National Science Foundation
- Microbes thrive in harsh, isolated water under Antarctic glacier - University of Dartmouth News

10/4/2009  Changes in biogenic carbon flow in response to sea surface warming - PNAS

7/4/2009  Phasing and amplitude of sea-level and climate change during the penultimate interglacial - Nature Geoscience

3/4/2009  Persistent Positive North Atlantic Oscillation Mode Dominated the Medieval Climate Anomaly - Science

1/4/2009  Renewed glacial activity during the Antarctic cold reversal and persistence of cold conditions until 11.5 ka in southwestern Patagonia - Geology

1/4/2009  Climate changes caused by degassing of sediments during the emplacement of large igneous provinces - Geology

1/4/2009  Circum-Pacific arc flare-ups and global cooling near the Eocene-Oligocene boundary - Geology

1/4/2009  The Role of Aerosols in the Evolution of Tropical North Atlantic Ocean Temperature Anomalies - Science

1/4/2009  Climate response to regional radiative forcing during the twentieth century - Nature Geoscience


ultima modifica: 28 Aprile 2009