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Elevated carbon dioxide suppresses dominant plant species in a mixed-grass prairie
2016-07-01 08:07:00| Climate Ark Climate Change & Global Warming Newsfeed
PhysOrg: Climate controls vegetation distribution across Earth, with some vegetation types being more vulnerable to climate change and others more resistant. Because resistance and resilience can influence ecosystem stability and determine how communities and ecosystems respond to climate change, evaluating the potential for resistance in future prairies and other ecosystems is important. Led by researchers from Wyoming, a team found that elevated carbon dioxide levels suppress the dominant plant species...
Tags: plant
species
carbon
dominant
New approach measures how much carbon dioxide comes from mine drainage
2016-06-20 05:02:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: The collective estimated amount of carbon dioxide being released into the atmosphere from 140 coal mines across Pennsylvania is the equivalent to that of a small power plant, a new West Virginia University study finds. Dorothy Vesper, associate professor in the Department of Geology and Geography at West Virginia University, and her research team, are using a meter designed for measuring carbon dioxide in beverages to more accurately measure the gas in mine drainage water. Using measurements from...
Tags: approach
mine
measures
carbon
Every observatory in the world now reports carbon dioxide is at highest level in 4 million years
2016-06-19 14:34:00| Climate Ark Climate Change & Global Warming Newsfeed
Mashable: One by one, the observatories sounded the alarm in the past few years--from the peak of Mauna Loa in Hawaii, and the top of the Greenland ice sheet--as the amount of carbon dioxide in the Earth's atmosphere crept above 400 parts per million (ppm). The last alarm bells went off this week, when scientists announced that the Halley Research Station in Antarctica, as well as a monitoring post at the geographic South Pole, both located amid the most pristine air on the planet, have now passed the 400...
Antarctica carbon dioxide levels breach red line
2016-06-19 00:40:00| Climate Ark Climate Change & Global Warming Newsfeed
UK Progressive: In May 2013, the carbon dioxide monitoring station at Mauna Loa, Hawaii, recorded a major milestone the concentration of atmospheric carbon dioxide had crossed the symbolic red line of 400 parts per million for the first time since record-keeping began. Now, three years and several record-breaking months later, the last station on Earth without a 400 ppm reading has finally reached it. In a statement released Wednesday, the National Oceanic and Atmospheric Administration (NOAA) revealed that,...
Antarctic carbon dioxide reaches highest levels in 4 million years
2016-06-18 06:00:00| Climate Ark Climate Change & Global Warming Newsfeed
Monitor: Antarctica recently witnessed an event that last took place four million years ago: Carbon dioxide levels broke through the barrier of 400 parts per million (ppm). In fact, the frozen continent is a laggard in this respect. The announcement Wednesday by the National Oceanic and Atmospheric Administration (NOAA) gave the date of this milestone as May 23. But the global annual mean concentration of carbon dioxide already surpassed 400 ppm last year, the first time that has happened in human history....
Tags: years
million
levels
highest
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