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A new Large Tetrapodomorph Sarcopterygian from the Late Devonian of Iran

A new large tetrapodomorph sarcopterygian from the Late Devonian of IranAuthors:Davesne et alAbstract:Remains of a large sarcopterygian were collected in the Middle-Late Devonian Zarand Formation of Southeastern Iran. These remains consist of incomplete jaw bones of uncertain identification, preserved in a dense and heterogeneous rock matrix. Show More Summary

Cry for me, Willie Soon

And by “me” I mean all the children of future generations. Willie Soon is a soft-money scientist at Harvard Smithsonian Center for Astrophysics who has been producing highly questionable ‘science’ casting, for several years, faux light on the reality of the human caused process of global warming. It appears that most or all of Soon’s…

Session on ocean acidification, air-sea exchange and the biological pump at the 25th Goldschmidt Conference, Prague, 16-21 August 2015

Conveners: Steven Emerson, and Doug Wallace Abstract submission is now open until April 2nd, 2015. The pCO2 content of the atmosphere is regulated by exchange with the upper ocean via the solubility and biological pumps. About one quarter of the anthropogenic CO2 introduced to the atmosphere is ultimately stored in the ocean causing a decrease […]

Session on ocean acidification (multiple stressors context) at the 25th Goldschmidt Conference, Prague, 16-21 August 2015

The session is entitled “Anthropogenic Impacts on Coastal Geochemistry: Acidification, Eutrophication and Hypoxia”. The oceans’ coastal zones face strong and rapid changes, forced by a combination of multiple human-driven stressors, including eutrophication and anthropogenic CO2-induced changes. Show More Summary

Juvenile pen shells (Pinna nobilis) tolerate acidification but are vulnerable to warming

In the course of this century, rising anthropogenic CO2 emissions will likely cause a decrease in ocean pH, know as ocean acidification, together with an increase of water temperature. Only in the last years, studies have focused on synergetic effects of both stressors on marine invertebrates, particularly on early life stages considered more vulnerable. Disparate […]

Decreased calcification in the Southern Ocean over the satellite record

Widespread ocean acidification is occurring as the ocean absorbs anthropogenic carbon dioxide from the atmosphere, threatening marine ecosystems, particularly the calcifying plankton that provide the base of the marine food chain and play a key role within the global carbon cycle. Show More Summary

Ocean warming–acidification synergism undermines dissolved organic matter assembly

Understanding the influence of synergisms on natural processes is a critical step toward determining the full-extent of anthropogenic stressors. As carbon emissions continue unabated, two major stressors—warming and acidification—threaten marine systems on several scales. Show More Summary

How big was ‘Huanghetitan’ ruyangensis? I mean, really?

I’ve been taking a long-overdue look at some of the recently-described giant sauropods from China, trying to sort out just how big they were. Not a new pursuit for me, just one I hadn’t been back to in a while. Also, I’m not trying to debunk anything about this animal – as far as I […]

Occurrence of aragonite corrosive water in the North Yellow Sea, near the Yalu River estuary, during a summer flood

To understand seawater CaCO3 saturation state (?arag for aragonite and ?cal for calcite) dynamics in river-dominated ocean margins, we investigated the carbonate system and ancillary parameters in the North Yellow Sea, near the Yalu River estuary, during and after a summer flood (August and September 2013, respectively). During the flood period, nearshore ?arag ranged from […]

20 Year old Military Satellite Experiences Unexplained Temperature Spike, Explodes

A 20-year-old military weather satellite apparently exploded in orbit Feb. 3 following what the U.S. Air Force described as a sudden temperature spike.The “catastrophic event” produced 43 pieces of space debris, according to Air Force Space Command, which disclosed the loss of the satellite Feb. Show More Summary

Theia Formed in the Same Region as the Earth

A primordial origin for the composition similarity between the Earth and the MoonAuthors:Mastrobuono-Battisti et alAbstract:Most of the properties of the Earth-Moon system can be explained by a collision between a planetary embryo and the growing Earth late in the accretion process. Show More Summary

Lost City, Rumored "City of the Monkey God," Discovered in Honduran Rain Forest

An expedition to Honduras has emerged from the jungle with dramatic news of the discovery of a mysterious culture's lost city, never before explored. The team was led to the remote, uninhabited region by long-standing rumors that itShow More Summary

Science Denialists Have Delayed Action On Climate Change: Soon vs. the Hockey Stick

If you have not been living in a cave, and had you been, I’d respect that, you know about Willie Soon Gate. Willie soon is a researcher on soft money at the Harvard Smithsonian Center for Astrophysics. Soon is well known for producing research of questionable quality that anemically attempts to buck the scientific consensus…

Diversity patterns of Devonian Plant Zosterophyllopsida Tied to PaleoGeography

Diversity patterns of the vascular plant group Zosterophyllopsida in relation to Devonian palaeogeographyAuthors:Cascales-Miñana et alAbstract:The Zosterophyllopsida originated in the Silurian and became prominent vascular components of Early Devonian floras worldwide. Show More Summary

The Hydraulic Hypothesis and the End of Civilization

OK, I admit the title of this post is possibly a bit extreme but I could not resist the symmetry. Here, I refer to both ends of civilization, the start and the finish. I’d like to talk about a recent review published in Science, titled “Systems integration for global sustainability” written by my colleague Peter…

Potential and limitations of finite element modelling in assessing structural integrity of coralline algae under future global change

Coralline algae are important habitat formers found on all rocky shores. While the impact of future ocean acidification on the physiological performance of the species has been well studied, little research has focussed on potential changes in structural integrity in response to climate change. A previous study using 2-D Finite Element Analysis (FEA), suggested increased […]

Physio-ecological responses of Patagonian coastal marine phytoplankton in a scenario of global change: Role of acidification, nutrients and solar UVR

The aim of our study was to experimentally determine the future combined effects of solar UVR (280–400 nm), nutrients enrichment and acidification on a natural phytoplankton community (late phase of the bloom) of the Chubut River estuary (Patagonia, Argentina). We exposed the community to two radiation conditions (i.e., with and without UVR) under a future […]

Physiological and ecological performance differs in four coral taxa at a volcanic carbon dioxide seep

Around volcanic carbon dioxide (CO2) seeps in Papua New Guinea, partial pressures of CO2 (pCO2) approximate those as predicted for the end of this century, and coral communities have low diversity and low structural complexity. To assess the mechanisms for such community shifts in response to ocean acidification, we examined the physiological performance of two […]

Scientists to deploy ocean cameras as acidification fears mount

Climate scientists are looking for a new perspective on the increasingly acidic oceans through a suite of satellites 700 km out in space, watching over parts of the seas that research ships cannot reach. They report in the journal Environmental Science and Technology that thermal cameras could measure ocean temperatures, while microwave sensors could measure […]

Ocean acidification changing key organisms which form the basis of the marine food chain, say Swansea University researchers

OCEANS and marine life face a more uncertain future because ocean acidification, caused by climate change, is altering the growth of the organisms which are the basis of the entire food chain at sea. That is the finding of a Swansea University-led research team. Ocean acidification has been described as “the other CO2 problem”, and is also caused […]

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