je.st
news
Tag: atmosphere
EU Pig Prices: Well Balanced Market Situation - Optimistic Atmosphere
2013-05-14 02:00:00| ThePigSite - Industry News
EU - The European pig slaughter market appears steady and in friendly mood this week.
Tags: market
prices
situation
atmosphere
A new world?: carbon dioxide concentrations in atmosphere hit 400 ppm
2013-05-11 18:10:00| Climate Ark Climate Change & Global Warming Newsfeed
Mongabay: For the first time since homo sapiens evolved, concentrations of carbon dioxide in the atmosphere have struck 400 parts per million (ppm) due to burning fossil fuels. The National Oceanic and Atmospheric Administration (NOAA) reports that readings of carbon dioxide at Mauna Loa Observatory in Hawaii hit the symbolic number on Thursday and are expected to continue rising in coming years. The last time concentrations were this high for a sustained period was 4-5 million years ago when sea levels were...
Tags: world
hit
carbon
atmosphere
CO2 levels in atmosphere hit historic high
2013-05-11 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Australian Broadcasting Corporation: Global greenhouse gases in the atmosphere have reached an ominous milestone that's unprecedented in recorded human history. At the Mauna Loa observatory in Hawaii, the daily reading of carbon concentrations has now reached a level that hasn't been seen in more than 3 million years: CO2 levels in the atmosphere have hit 400 parts per million. The last time it reached a level like this, temperatures rose from between three and four degrees and sea levels were between five and 40 metres higher...
Tags: high
hit
levels
historic
Carbon dioxide in atmosphere at highest level for 5 million years
2013-05-11 10:29:00| Climate Ark Climate Change & Global Warming Newsfeed
Independent: The concentration of carbon dioxide in the atmosphere has breached the symbolically important level of 400 parts per million (ppm) for the first time in 5 million years after rising at its fastest rate since records began. Average daily CO2 levels jumped by 2.74 ppm in the first 17 weeks of 2013, compared to last year, the biggest increase since the benchmark monitoring stations high on the Hawaiian volcano of Mauna Loa began taking measurements in 1958. Experts blamed most of the increase...
Tags: years
level
million
highest
400 ppm: Carbon dioxide in the atmosphere reaches prehistoric levels
2013-05-10 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Scientific American: On May 2, after nightfall shut down photosynthesis for the day in Hawaii, carbon dioxide levels in the atmosphere touched 400 parts-per-million there for the first time in at least 800,000 years. Near the summit of volcanic Mauna Loa--where a member of the Keeling family has kept watch since 1958--sensors measured this record through sunrise the following day. Levels have continued to dance near that benchmark in recent days, registering above 400 ppm for the first time in eons after midnight on...
Tags: levels
carbon
atmosphere
reaches
Sites : [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] next »