Huge population fluctuations could have preceded passenger pigeon extinction
Using quantum smoothing for optical phase estimation
Study reveals uncertainty over the benefits of feeding birds in winter
Wild bird populations are generally thought to benefit from being given additional food in winter but our understanding of the effects of such food provision is incomplete. The results of a new study, carried ...
World population could be nearly 11 billion by 2100, research shows
A new statistical analysis shows the world population could reach nearly 11 billion by the end of the century, according to a United Nations report issued June 13. That's about 800 million, or about 8 percent, more than the ...
Scientists develop new approach to support future climate projections
Scientists have developed a new approach for evaluating past climate sensitivity data to help improve comparison with estimates of long-term climate projections developed by the Intergovernmental Panel on Climate Change (IPCC).
Scientists find state record 87 eggs in largest python from Everglades
University of Florida researchers curating a 17-foot-7-inch Burmese python, the largest found in Florida, discovered 87 eggs in the snake, also a state record.
Amazon was not all manufactured landscape before Europeans arrived, scientists report
Population estimates for the Amazon basin just before Europeans arrived range from 2 to 10 million people. The newly reported reconstruction of Amazonian prehistory by Smithsonian scientist Dolores R. Piperno ...
Far higher potential for wind energy in India than previously estimated: study
A new assessment of wind energy in India by Lawrence Berkeley National Laboratory has found that the potential for on-shore wind energy deployment is far higher than the official estimates about 20 times ...
NASA's Webb telescope: Revolutionary design, runaway costs
In deep, cold space, nearly a million miles from Earth, a giant telescope later this decade will scan for the first light to streak across the universe more than 13 billion years ago.
Oracle misfires in fiscal 2Q, raising tech worries
Oracle's quarterly earnings missed analyst estimates as the business software maker struggled to close deals, signaling possible trouble ahead for the technology sector.
Chemically scrubbing CO2 from the air too expensive
(PhysOrg.com) -- While it is possible to chemically scrub carbon dioxide from Earth's atmosphere in order to lessen the severity of global warming, the process is prohibitively expensive for now. Best to focus ...
Climate sensitivity to CO2 more limited than extreme projections: research
A new study suggests that the rate of global warming from doubling of atmospheric carbon dioxide may be less than the most dire estimates of some previous studies and, in fact, may be less severe than projected by ...
Profits are so last quarter: Wall St. eyes revenue
(AP) -- Even in a tough economy, increasing profits can be easy: Just cut costs enough and the bottom line keeps improving. But companies can only do that for so long.
Making the invisible visible: Verbal -- not visual -- cues enhance visual detection
Cognitive psychologists at the University of Pennsylvania and University of California have shown that an image displayed too quickly to be seen by an observer can be detected if the participant first hears the name of the ...