(Phys.org) —The NASA Hubble Space Telescope has given astronomers their clearest view yet of Comet ISON, a newly-discovered sun grazer comet that may light up the sky later this year, or come so close to ...
Apr 23, 2013
4.9 / 5 (14)
5
|
Earth was cooling until the end of the 19th century and a hundred years later, the planet's surface was on average warmer than at any time in the previous 1,400 years, according to climate records presented ...
Apr 21, 2013
3.8 / 5 (36)
44
The circum-Antarctic Southern Ocean is an important region for global marine food webs and carbon cycling because of sea-ice formation and its unique plankton ecosystem. The origin of its ecosystems can be ...
Apr 18, 2013
not rated yet
0
|
(Phys.org) —IceBridge closed out the fourth week of its Arctic campaign with a flight over the striking landscape of eastern Greenland's Geikie Peninsula and a survey of a Canadian ice cap before taking ...
Apr 18, 2013
5 / 5 (2)
0
(Phys.org) —A Purdue University-led team of researchers discovered sunlit snow to be the major source of atmospheric bromine in the Arctic, the key to unique chemical reactions that purge pollutants and ...
Apr 16, 2013
5 / 5 (1)
0
|
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 ...
Apr 15, 2013
4.1 / 5 (12)
12
In the last few decades, glaciers at the edge of the icy continent of Antarctica have been thinning, and research has shown the rate of thinning has accelerated and contributed significantly to sea level ...
Apr 14, 2013
4.1 / 5 (10)
10
|
A new 1000-year Antarctic Peninsula climate reconstruction shows that summer ice melting has intensified almost ten-fold, and mostly since the mid 20th Century. Summer ice melt affects the stability of Antarctic ...
Apr 14, 2013
4.5 / 5 (17)
2
|
The United States and China will establish a joint working group on climate change, they said Saturday, adding that they have a shared view on the "increasing dangers" of global warming.
Apr 13, 2013
4.3 / 5 (7)
0
(Phys.org) —Scientists have found unexpectedly high concentrations of opal, a mineral containing silicate, in marine sediments during the transition periods from ice ages to warm phases. The explanation ...
Apr 10, 2013
5 / 5 (4)
4
|
University of Cincinnati student Shujie Wang has discovered that a good way to monitor the environmental health of Antarctica is to go with the flow – the ice flow, that is.
Apr 09, 2013
5 / 5 (1)
0
Nancy Bertler and her team took a freezer to the coldest place on Earth, endured weeks of primitive living and risked spending the winter in Antarctic darkness, to go get ice—ice that records our climate's ...
Apr 06, 2013
4.1 / 5 (9)
28
Two annually dated ice cores drawn from the tropical Peruvian Andes reveal Earth's tropical climate history in unprecedented detail—year by year, for nearly 1,800 years.
Apr 04, 2013
5 / 5 (14)
8
|
Research from New Zealand's University of Otago detailing the fossil of a dwarf baleen whale from Northern California reveals that it avoided extinction far longer than previously thought.
Apr 04, 2013
5 / 5 (1)
0
|
(Phys.org) —A constant stream of space debris flows toward Earth from the rest of the solar system. Large meteors can sometimes survive the intense friction and heat upon entering Earth's atmosphere, but ...
Apr 04, 2013
5 / 5 (1)
1
