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Spring has sprung in Possum Valley as the daffodils are blooming and the days lengthen one by one.  Monday is here one more time and the opportunity for science talk is here again.  Time to brighten your day with selections from science sites around the globe.  New discoveries, new takes on old knowledge, and other bits of news are all available for the perusing in today's information world.  Today's tidbits include new bird flu strain seen adapting to mammals and humans, the Arctic may be nearly free of sea ice during the first half of the 21st Century, eating solid food early puts baby marmosets on a path to obesity, and CO2 removal can lower costs of climate protection.

Pull up that comfy chair and grab a spot near the window.  There is always plenty of room for everyone.  Another session of Dr. Possum's science education, entertainment, and potluck discussion is set to begin.

Featured Stories
The possibility of a new flu epidemic is seen in the adaptation of a bird flu virus to animals and humans.

"The human isolates, but not the avian and environmental ones, have a protein mutation that allows for efficient growth in human cells and that also allows them to grow at a temperature that corresponds to the upper respiratory tract of humans, which is lower than you find in birds," says (flu researcher) Kawaoka, a leading expert on avian influenza.

The findings, drawn from genetic sequences deposited by Chinese researchers into an international database, provide some of the first molecular clues about a worrisome new strain of bird flu, the first human cases of which were reported on March 31 by the Chinese Center for Disease Control and Prevention. So far, the new virus has sickened at least 33 people, killing nine. Although it is too early to predict its potential to cause a pandemic, signs that the virus is adapting to mammalian and, in particular, human hosts are unmistakable, says Kawaoka.

As observations about climate change continue to be made scientists predict the Arctic may be nearly free of summer sea ice" in the first half of the 21st Century.
For scientists studying summer sea ice in the Arctic, it’s not a question of “if” there will be nearly ice-free summers, but “when.” And two scientists say that “when” is sooner than many thought — before 2050 and possibly within the next decade or two.
As many Americans fight signs of obesity we hear from scientists that eating solid food early puts baby marmosets on a path to obesity.
Baby marmoset monkeys that began eating solid food earlier than their peers were significantly more likely to be obese at 1 year of age...

This early life obesity resulted in metabolic damage such as insulin resistance and poor blood sugar control, a companion study showed.

What if any consequence these findings may have for humans remains to be seen.

As climate change continues governments struggle with the costs of protecting the climate.  Now we have news that removal of CO2 helps reduce those costs.

Directly removing CO2 from the air has the potential to alter the costs of climate change mitigation. It could allow prolonging greenhouse-gas emissions from sectors like transport that are difficult, thus expensive, to turn away from using fossil fuels. And it may help to constrain the financial burden on future generations, a study now published by the Potsdam Institute for Climate Impact Research (PIK) shows. It focuses on the use of biomass for energy generation, combined with carbon capture and storage (CCS). According to the analysis, carbon dioxide removal could be used under certain requirements to alleviate the most costly components of mitigation, but it would not replace the bulk of actual emissions reductions.

Knucklehead's Photo of the Week
NOTHING BUT THE BLUES
NOTHING BUT THE BLUES DSCN7351

©Knucklehead, all rights reserved, presented by permission.  Click on the image to see more in the series.

Other Worthy Stories of the Week
Weekly pictures of stunning architecture
Pesticide suspected in bee die-offs could also kill birds
Faraway nebula appears as a ghostly green bubble
Redesigned germanium could lead to lighter, faster electronics
Transient biocompatible electronics disappear when no longer needed
Mayan calendar calibrated to modern European calendar
How 2-million-year-old hominid ancestor moved
New technique measures evaporation globally
'Strikingly similar' brains of man and fly may aid mental health research
Pollution: Learning the limits for marine species
Diamond as a building material for optical circuits
Archeologists shine new light on Easter Island statue
Hidden artwork uncovered with airport full body scanner technology
Discovery of a blue supergiant star born in the wild

For even more science news:
General Science Collectors:
Alpha-Galileo
BBC News Science and Environment
Eureka Science News
LiveScience
New Scientist
PhysOrg.com
SciDev.net
Science/AAAS
Science Alert
Science Centric
Science Daily
Scientific American
Space Daily

Blogs:
All-GeoGeology and Earth science
Cantauri Dreams space exploration
Deep Sea News marine biology
List of Geoscience Blogs
Science20.com
Science Blogs
Space Review
Scientific Blogging.
Space.com
Techonology Review
Tetrapod Zoology vertebrate paleontology
Wired News
Science RSS Feed: Medworm
The Skeptics Guide to the Universe--a combination of hard science and debunking crap

At Daily Kos:
This Week in Science by DarkSyde
Overnight News Digest:Science Saturday by Neon Vincent. OND tech Thursday by rfall.
All diaries with the DK GreenRoots Tag.
Astro Kos
SciTech at Dkos.

NASA picture of the day. For more see the NASA image gallery or the Astronomy Picture of the Day Archive
 photo NewYorkCityatnight_zps1cf23627.jpg
New York City at night, NASA, Public Domain

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