Frozen trees in Parsberg, Germany.copyright photo taken by the Author of this blog
Showing posts with label Environment. Show all posts
Showing posts with label Environment. Show all posts
Thursday
Do you see the Beauty of Winter Time
Winter has also its own beauty. It might be very cold but the white surroundings you see especially the frozen trees around is such dream and a real beauty of nature.
Frozen trees in Parsberg, Germany.
copyright photo taken by the Author of this blog
Frozen trees in Parsberg, Germany.copyright photo taken by the Author of this blog
Monday
North Greenland had record summer snowmelt
Would you believe that one of the cause of flooding in a lot of places around the world are coming from the melting ice in the North Pole....just continue to read this news for more infos!! be informed of what is happening to your environment!! keep reading!! have a great day!!
North Greenland had record summer snowmelt
Copyright 2008 by United Press International
www.arcamax.com
NEW YORK (UPI) -- U.S. atmospheric scientists say satellite data indicates northern Greenland experienced a record number of melting days this summer.
City College of New York Assistant Professor Marco Tedesco said the northern part of the Greenland ice sheet experienced extreme snowmelt during this summer, with large portions of the area subject to record melting days.
Tedesco and his team said they based their conclusion on an analysis of microwave brightness temperature recorded by the Special Sensor Microwave Imager on the F13 satellite.
"Having such extreme melting so far north, where it is usually colder than the southern regions, is extremely interesting," Tedesco said. "In 2007, the record occurred in southern Greenland, mostly at high elevation areas, where in 2008 extreme snowmelt occurred along the northern coast."
He said melting in northern Greenland lasted up to 18 days longer than previous maximum values. And he said the melting index -- the number of melting days times the area subject to melting -- was three times greater than the 1979-2007 average.
The findings are reported in the Oct. 6 edition of "EOS," a weekly newspaper published by the American Geophysical Union.
North Greenland had record summer snowmelt
Copyright 2008 by United Press International
www.arcamax.com
NEW YORK (UPI) -- U.S. atmospheric scientists say satellite data indicates northern Greenland experienced a record number of melting days this summer.
City College of New York Assistant Professor Marco Tedesco said the northern part of the Greenland ice sheet experienced extreme snowmelt during this summer, with large portions of the area subject to record melting days.
Tedesco and his team said they based their conclusion on an analysis of microwave brightness temperature recorded by the Special Sensor Microwave Imager on the F13 satellite.
"Having such extreme melting so far north, where it is usually colder than the southern regions, is extremely interesting," Tedesco said. "In 2007, the record occurred in southern Greenland, mostly at high elevation areas, where in 2008 extreme snowmelt occurred along the northern coast."
He said melting in northern Greenland lasted up to 18 days longer than previous maximum values. And he said the melting index -- the number of melting days times the area subject to melting -- was three times greater than the 1979-2007 average.
The findings are reported in the Oct. 6 edition of "EOS," a weekly newspaper published by the American Geophysical Union.
Thursday
2008 ozone hole larger than 2007's hole
I guess, it is good to share this information about what is happening to our Mother Earth now!! keep reading and be informed!!
2008 ozone hole larger than 2007's hole
Copyright 2008 by United Press International
www.arcamax.com
PARIS (UPI) -- The European Space Agency says scientists have determined the 2008 ozone hole is larger than last year's ozone hole but smaller than the 2006 hole.
"This year the area of the thinned ozone layer over the South Pole reached about 27 million square kilometers, compared to 25 million square kilometers in 2007 and a record ozone hole extension of 29 million square kilometers in 2006, which is about the size of the North American continent," the ESA said.
Scientists said the depletion of ozone is caused by extremely cold temperatures at high altitude and the presence of ozone-destructing gases such as chlorine and bromine, originating from man-made products like chlorofluorocarbons, which were phased out under the 1987 Montreal Protocol but linger in the atmosphere.
Julian Meyer-Arnek of the German Aerospace Center which monitors the hole annually, said since the polar vortex remained undisturbed for a long period, the 2008 ozone hole has become one of the largest ever observed.
The annual analysis is based on data provided by instruments aboard the ESA's Envisat, ERS2 and MetOp satellites.
2008 ozone hole larger than 2007's hole
Copyright 2008 by United Press International
www.arcamax.com
PARIS (UPI) -- The European Space Agency says scientists have determined the 2008 ozone hole is larger than last year's ozone hole but smaller than the 2006 hole.
"This year the area of the thinned ozone layer over the South Pole reached about 27 million square kilometers, compared to 25 million square kilometers in 2007 and a record ozone hole extension of 29 million square kilometers in 2006, which is about the size of the North American continent," the ESA said.
Scientists said the depletion of ozone is caused by extremely cold temperatures at high altitude and the presence of ozone-destructing gases such as chlorine and bromine, originating from man-made products like chlorofluorocarbons, which were phased out under the 1987 Montreal Protocol but linger in the atmosphere.
Julian Meyer-Arnek of the German Aerospace Center which monitors the hole annually, said since the polar vortex remained undisturbed for a long period, the 2008 ozone hole has become one of the largest ever observed.
The annual analysis is based on data provided by instruments aboard the ESA's Envisat, ERS2 and MetOp satellites.
Tuesday
U.S.: Global warming is biggest challenge
A good infos worthy of sharing??are we really conscious of our environment?? keep reading!!
U.S.: Global warming is biggest challenge
Copyright 2008 by United Press International
WASHINGTON (UPI) -- A U.S. official says meeting energy needs in the 21st century while fighting global warming will be one of the biggest challenges humanity has faced.
U.S. Department of Energy Undersecretary for Science Raymond Orbach says meeting that challenge will demand "transformational breakthroughs in basic science."
He cited as one example the development of artificial versions of photosynthesis, the natural process that plants use to produce energy from water and sunlight. Artificial photosynthesis, which Orbach calls "photosynthesis without the plant," could theoretically open the door to fueling cars of the future with water rather than gasoline.
Artificial photosynthesis units would split water into hydrogen and oxygen, producing clean-burning hydrogen fuel, he said.
Orbach made the statement in a two-part podcast in the American Chemical Society's Global Challenges/Chemistry Solutions series.
U.S.: Global warming is biggest challenge
Copyright 2008 by United Press International
WASHINGTON (UPI) -- A U.S. official says meeting energy needs in the 21st century while fighting global warming will be one of the biggest challenges humanity has faced.
U.S. Department of Energy Undersecretary for Science Raymond Orbach says meeting that challenge will demand "transformational breakthroughs in basic science."
He cited as one example the development of artificial versions of photosynthesis, the natural process that plants use to produce energy from water and sunlight. Artificial photosynthesis, which Orbach calls "photosynthesis without the plant," could theoretically open the door to fueling cars of the future with water rather than gasoline.
Artificial photosynthesis units would split water into hydrogen and oxygen, producing clean-burning hydrogen fuel, he said.
Orbach made the statement in a two-part podcast in the American Chemical Society's Global Challenges/Chemistry Solutions series.
Thursday
Study: Increased Greenland ice melt likely
Copyright 2008 by United Press International (armax.com)
MADISON, Wis. (UPI) -- U.S. scientists say an analysis of the Laurentide Ice Sheet -- the last Northern Hemisphere ice sheet to disappear -- suggests increased Greenland ice melt.
Researchers at the University of Wisconsin and Columbia University's Center for Climate Systems Research said the disappearance of the Laurentide Ice Sheet is the closest example of what can be expected in Greenland during the next century.
The study shows sea level rise as a result of ice sheet melt can occur very rapidly.
"We have never seen an ice sheet retreat significantly or even disappear before, yet this may happen for the Greenland ice sheet in the coming centuries to millennia," said University of Wisconsin Assistant Professor Anders Carlson, who led the study. "What we don't know is the rate of melting of the Greenland ice sheet."
"The word 'glacial' used to imply something was very slow," said Allegra LeGrande, who led the computer modeling portion of the study. "This new evidence … indicates that 'glacial' is anything but slow. Past ice sheets responded quickly to a changing climate, hinting at the potential for a similar response in the future."
The findings appear in the online edition of the journal Nature Geoscience.
Subscribe to:
Posts (Atom)