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Dow, S&P 500 close at record levels after jobs report
2013-05-04 01:03:55| Biotech - Topix.net
Traders Jarrett Johnson and Mario Picone share a laugh after the Dow Jones Industrial average surpassed 15,000 during the trading day on the floor at the New York Stock Exchange, May 3, 2013.
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Earth's greenhouse gas levels approach 400 ppm milestone
2013-05-02 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
LA Times: The ratio of carbon dioxide in Earth's atmosphere is flirting with 400 parts per million, a level last seen about 2.5 million to 5 million years ago, according to the Scripps Institution of Oceanography at UC San Diego. The Institution this week launched a daily Keeling curve update, showing the saw-toothed upward diagonal of rising carbon dioxide levels since the late 1950s. Isolated measurements have peaked at above 400 parts per million in the Arctic, but scientists are more alarmed at steady...
Global CO2 Levels Approach Worrisome Milestone
2013-05-02 01:19:00| Climate Ark Climate Change & Global Warming Newsfeed
Scientific American: Near the moonscape summit of the Mauna Loa volcano in Hawaii, an infrared analyzer will soon make history. Sometime in the next month, it is expected to record a daily concentration of carbon dioxide in the atmosphere of more than 400 parts per million (p.p.m.), a value not reached at this key surveillance point for a few million years. There will be no balloons or noisemakers to celebrate the event. Researchers who monitor greenhouse gases will regard it more as a disturbing marker of humanity's...
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Global CO2 Levels Set to Pass 400 ppm Milestone
2013-05-01 17:31:00| Climate Ark Climate Change & Global Warming Newsfeed
Guardian: The concentration of carbon dioxide in the atmosphere has reached 399.72 parts per million (ppm) and is likely to pass the symbolically important 400 ppm level for the first time in the next few days. Readings at the U.S. government's Earth Systems Research laboratory in Hawaii, are not expected to reach their 2013 peak until mid-May, but were recorded at a daily average of 399.72ppm on April 25. The weekly average stood at 398.5 on Monday. Hourly readings above 400ppm have been recorded six...
All eyes on Keeling Curve: Scientists anxious as CO2 levels to cross 400 PPM
2013-05-01 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed
InsideClimate: For the first time in human history, concentrations of carbon dioxide in the atmosphere are expected to pass 400 parts per million across much of the Northern Hemisphere in May, according to scientists who study data from the Mauna Loa Observatory, the world's longest-running CO2 monitoring station. While crossing the 400 ppm mark isn't a "tipping point" that signals climate catastrophe, scientists told InsideClimate News, it is an important symbolic milestone that underscores government inaction...
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