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Tag: planet
Humans push planet beyond boundaries towards "danger zone"- study
2015-01-16 14:08:27| IT Services - Topix.net
A building under construction is seen amidst smog on a polluted day in Shenyang, Liaoning province November 21, 2014.REUTERS/Jacky Chen ROME, Jan 15 - Human activity has pushed the planet across four of nine environmental boundaries, sending the world towards a "danger zone", according to a study published on Thursday in the journal Science. Climate change, biodiversity loss, changes in land use, and altered biogeochemical cycles due in part to fertiliser use have fundamentally changed how the planet functions, the study said.
Tags: study
zone
humans
planet
Humans Cross Another Danger Line for Planet
2015-01-15 11:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Scientific American: Five years go an impressive, international group of scientists unveiled nine biological and environmental boundaries that humankind should not cross in order to keep the earth a livable place. To its peril, the world had already crossed three of those safe limits: too much carbon dioxide in the atmosphere, too rapid a rate of species loss and too much pouring of nitrogen into rivers and oceansprimarily in the form of fertilizer runoff. Now we have succeeded in transgressing a fourth limit: the...
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cross
humans
planet
Improved Saturn Positions Help Spacecraft Navigation, Planet Studies, Fundamental Physics
2015-01-09 02:35:33| rfglobalnet Home Page
Scientists have used the National Science Foundation's Very Long Baseline Array (VLBA) radio-telescope system and NASA's Cassini spacecraft to measure the position of Saturn and its family of moons to within about a mile -- at a range of nearly a billion miles. This feat improves astronomers' knowledge of the dynamics of our Solar System and also benefits interplanetary spacecraft navigation and research on fundamental physics.
Tags: navigation
studies
improved
positions
No Signals From Newest Kepler Planet
2015-01-09 02:26:07| rfglobalnet Home Page
A newly discovered planet has been observed with the Allen Telescope Array in a search for radio signals that would betray technically sophisticated inhabitants, but no transmissions have been detected. By Seth Shostak, Senior Astronomer and Director of SETI Research
Tags: newest
planet
signals
kepler
Every time you fly, you trash the planet & theres no easy fix
2015-01-03 15:00:00| Climate Ark Climate Change & Global Warming Newsfeed
FiveThirtyEight: When the latest international Climate Conference wrapped up in Lima, Peru, last month, delegates boarded their flights home without much official discussion of how the planes that shuttled them to the meeting had altered the climate. Aircraft currently contribute about 2.5 percent of global carbon dioxide emissions. That might not seem like much, but if the aviation industry were a country, it would be one of the worlds top 10 emitters of CO2. And its emissions are projected to grow between two...
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