How will global warming affect life on Earth? Uncertainties about future climate change and the impact of human activity make it difficult to predict exactly what lies ahead. But the past offers clues, say scientists who are studying a period of warming that occurred about 55 million years ago.
In a joint project of the University of Michigan, the University of New Hampshire and the Smithsonian Institution, researchers have been analyzing fossils from the badlands of Wyoming found in a distinctive layer of bright red sedimentary rock that was deposited at the boundary between the Paleocene and Eocene epochs---a time of apparent sudden climate change. The researchers described their findings in a paper presented Feb. 16 at the annual meeting of the American Association for the Advancement of Science.
"The interval of Earth history that were studying is marked by a short-term global warming event thought to have occurred when something triggered the release of methane from methane clathrate---a kind of methane ice found in ocean sediments," said Philip D. Gingerich, professor of geological sciences at the University of Michigan. Within about 10,000 years of peak warming, mammals such as primates and the groups that include horses and deer appeared together for the first time in North America, apparently having crossed land bridges from other continents.
New insights into the ancestors of all complex life
29.05.2017 | University of Bristol
A 3-D look at the 2015 El Niño
29.05.2017 | NASA/Goddard Space Flight Center
Scientists have developed a new method of characterizing graphene’s properties without applying disruptive electrical contacts, allowing them to investigate both the resistance and quantum capacitance of graphene and other two-dimensional materials. Researchers from the Swiss Nanoscience Institute and the University of Basel’s Department of Physics reported their findings in the journal Physical Review Applied.
Graphene consists of a single layer of carbon atoms. It is transparent, harder than diamond and stronger than steel, yet flexible, and a significantly better...
The world's highest gain high power laser amplifier - by many orders of magnitude - has been developed in research led at the University of Strathclyde.
The researchers demonstrated the feasibility of using plasma to amplify short laser pulses of picojoule-level energy up to 100 millijoules, which is a 'gain'...
Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.
Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....
Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.
The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....
An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...
24.05.2017 | Event News
23.05.2017 | Event News
22.05.2017 | Event News
30.05.2017 | Life Sciences
30.05.2017 | Life Sciences
30.05.2017 | Physics and Astronomy