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Latest Carbon dioxide in Earth's atmosphere Stories

Trees Use Water More Efficiently Due To CO2 Rise
2013-07-11 08:01:38

redOrbit Staff & Wire Reports - Your Universe Online Trees are becoming more efficient at using water in response to higher atmospheric carbon dioxide levels, according to new research published Wednesday in the journal Nature. In the study, researchers including Dave Hollinger from the US Forest Service's Northern Research Station (NRS) and Trevor Keenan of Harvard University analyzed direct, long-term measurements of whole-ecosystem carbon and water exchange. According to...

Early Earth Relied On Carbon To Keep Warm Enough For Life
2013-07-10 13:58:57

Lee Rannals for redOrbit.com - Your Universe Online University of Colorado Boulder researchers have figured out how early Earth was warm enough to support life when the sun was 20 per cent dimmer than today. A new study determined that all that may have been required to sustain liquid water and primitive life on Earth during the Archean eon, 2.8 billion years ago, were the reasonable atmospheric carbon dioxide amounts believed to be present at the time and a little bit of methane....

Global Cooling Versus Global Warming
2013-06-17 05:31:21

Lee Rannals for redOrbit.com - Your Universe Online Scientists writing in the journal Nature Geoscience report that a cold snap which occurred 116 million years ago triggered an event in the marine ecosystem known as global cooling. The researchers said they were able to confirm a link between global cooling and a crash in the marine ecosystem during the mid-Cretaceous greenhouse period. This study quantifies the amplitude and duration of the temperature change for the first time. The...

Purple Urchins Quickly Adapt To Acidic Oceans
2013-06-13 11:41:25

Brett Smith for redOrbit.com - Your Universe Online As the levels of atmospheric carbon dioxide increase, the oceans are projected to absorb more of the greenhouse gas, leading to acidification of the water. This shift in oceanic chemistry is expected to negatively impact countless species. However, a new study from the University of California, Santa Barbara has found that purple sea urchins Strongylocentrotus purpuratus are capable of evolving in a way that copes with potential...

Carbon Found To Leak From Land To Water
2013-06-11 09:35:26

April Flowers for redOrbit.com - Your Universe Online In general, scientists have thought that about half of the carbon emitted by human activities remains in the atmosphere, with the other half being stored in the oceans and on land. A new study, published in Nature Geoscience, suggests that human activity might be increasing the transition of carbon from land to rivers, estuaries and the coastal zones. This indicates that large quantities of anthropogenic carbon might be hidden in...

New CO2 Removal Technique Produces Green Fuel, Offsets Ocean Acidification
2013-05-29 10:31:52

April Flowers for redOrbit.com - Your Universe Online A new technique to remove and store atmospheric carbon dioxide has been demonstrated by scientists at the Lawrence Livermore National Laboratory (LLNL). The new technique also generates carbon-negative hydrogen and produces alkalinity, which can be used to offset ocean acidification. At laboratory scale, the team demonstrated a system that uses the acidity normally produced in saline water electrolysis to accelerate silicate mineral...

Experts To Track Big City Carbon Footprints
2013-05-13 04:38:01

redOrbit Staff & Wire Reports - Your Universe Online Scientists from across the globe are joining forces to track the carbon footprints of some of the world´s largest cities, hoping to determine whether or not emissions standards in various regions are being met. According to Associated Press (AP) reporter Alicia Chang, the efforts are being focused on cities like Paris and Los Angeles, which are home to more than 10 million residents. In recent years, she said, these...

Revised Estimates Show CO2 Levels Had Not Actually Surpassed 400ppm
2013-05-13 13:30:18

redOrbit Staff & Wire Reports — Your Universe Online Update (May 13 @ 1:30 p.m.) Revised statistics released by the National Oceanic and Atmospheric Administration (NOAA) on Monday have revealed that average carbon dioxide levels at the Mauna Loa Observatory had not surpassed the 400 parts per million (ppm) level as originally reported. Instead, the average weekly CO2 levels at the Hawaiian facility for May 9 was 399.89 ppm. The agency had initially reported on Friday that...

New Technique Draws Modern Lessons From Ancient Climate Shift
2013-04-23 10:31:22

Brett Smith for redOrbit.com - Your Universe Online A new technique has allowed a team of British and American scientists to connect temperatures to a massive shift in atmospheric carbon dioxide that occurred around 34 million years ago, according to a new study in the Proceedings of the National Academy of Sciences. Scientists have described this transformation in global climate as a shift from a warm, high-carbon dioxide "greenhouse" condition to a temperate, low-carbon dioxide state...


Word of the Day
toccata
  • In music, a work for a keyboard-instrument, like the pianoforte or organ, originally intended to utilize and display varieties of touch: but the term has been extended so as to include many irregular works, similar to the prelude, the fantasia, and the improvisation.
This word is Italian in origin, coming from the feminine past participle of 'toccare,' to touch.
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