Climate Change: Carbon Dioxide Levels In World's Air Reach 'Troubling Milestone'
Source: HuffingtonPost
WASHINGTON -- The world's air has reached what scientists call a troubling new milestone for carbon dioxide, the main global warming pollutant.
Monitoring stations across the Arctic this spring are measuring more than 400 parts per million of the heat-trapping gas in the atmosphere. The number isn't quite a surprise, because it's been rising at an accelerating pace. Years ago, it passed the 350 ppm mark that many scientists say is the highest safe level for carbon dioxide. It now stands globally at 395.
So far, only the Arctic has reached that 400 level, but the rest of the world will follow soon.
"The fact that it's 400 is significant," said Jim Butler, global monitoring director at the National Oceanic and Atmospheric Administration's Earth System Research Lab in Boulder, Colo. "It's just a reminder to everybody that we haven't fixed this and we're still in trouble."
Read more: http://www.huffingtonpost.com/2012/05/31/climate-change-carbon-dioxide-troubling-milestone_n_1558561.html
BonnieJW
(2,261 posts)Troubling, concerned, significant aren't going to cut it. People in this country are reactive not proactive. Words like catastrophic, on fire, epic, cataclysmic would be good for starters. Until Capitol Hill is burning, we won't see anyone lift a finger.
FailureToCommunicate
(14,012 posts)ErikJ
(6,335 posts)The hotter it gets, the more air conditioning will be needed which uses a ton of electricity mostly produced from fossil fuels greatly increasing the CO2 concentration requiring MORE air conditioning increasing the concentration more ...and more and more.
In addition perhaps even much worse, they have recently discovered methane bubbles in shallow arctic waters. The warmth is thawing the ice allowing the ancient methane to be released in the arctic. THis will surely increase rapidly as it gets warmer.
Methane is 18 times stronger greenhouse gas than CO2.
alfredo
(60,071 posts)glinda
(14,807 posts)people told us that when/if the Permafrost melts it is a chain reaction like not being able to put out a massive fire. It feeds it's self. They said when that happens it is game over so where is the honesty and panic here in telling the world this and scrambling to either discover a way to deal with this or whatever? This totally sucks.
magical thyme
(14,881 posts)to save themselves and their families and servants. The rest of us they want to keep dumb and treading water. Or running on quicksand. Or whatever. Just out of their way.
alfredo
(60,071 posts)solarman350
(136 posts)This post is just intended to add some support and depth to your claim:
Global Warming Potentials
The concept of a global warming potential (GWP) was developed to compare the ability of each greenhouse gas to trap heat in the atmosphere relative to another gas. The definition of a GWP for a particular greenhouse gas is the ratio of heat trapped by one unit mass of the greenhouse gas to that of one unit mass of CO2 over a specified time period.
As part of its scientific assessments of climate change, the Intergovernmental Panel of Climate Change (IPCC) has published reference values for GWPs of several greenhouse gases. While the most current estimates for GWPs are listed in the IPCC's Third Assessment Report (TAR), EPA analyses use the 100-year GWPs listed in the IPCC's Second Assessment Report (SAR) to be consistent with the international standards under the United Nations Framework Convention on Climate Change (UNFCCC) (IPCC, 1996). According to the SAR, methane is 21 times more effective at trapping heat in the atmosphere when compared to CO2 over a 100-year time period.
Reference Link:
http://www.epa.gov/outreach/scientific.html
Now, let's see what Wikipedia Claims About This:
Atmospheric methane
2011 methane concentration in the upper troposphere
Methane is created near the Earth's surface, primarily by microorganisms by the process of methanogenesis. It is carried into the stratosphere by rising air in the tropics. Uncontrolled build-up of methane in the atmosphere is naturally checked although human influence can upset this natural regulation by methane's reaction with hydroxyl radicals formed from singlet oxygen atoms and with water vapor. It has a net lifetime of about 10 years, and is primarily removed by conversion to carbon dioxide and water
Methane also affects the degradation of the ozone layer.
In addition, there is a large (but unknown) amount of methane in methane clathrates in the ocean floors as well as the Earth's crust. Most methane is the result of biological process called methanogenesis.
In 2010, methane levels in the Arctic were measured at 1850 nmol/mol, a level over twice as high as at any time in the previous 400,000 years. Historically, methane concentrations in the world's atmosphere have ranged between 300 and 400 nmol/mol during glacial periods commonly known as ice ages, and between 600 to 700 nmol/mol during the warm interglacial periods. It has a high global warming potential: 72 times that of carbon dioxide over 20 years, and 25 times over 100 years, and the levels are rising.
Methane in the Earth's atmosphere is an important greenhouse gas with a global warming potential of 25 compared to CO2 over a 100-year period (although accepted figures probably represents an underestimate). This means that a methane emission will have 25 times the effect on temperature of a carbon dioxide emission of the same mass over the following 100 years. Methane has a large effect for a brief period (a net lifetime of 8.4 years in the atmosphere), whereas carbon dioxide has a small effect for a long period (over 100 years). Because of this difference in effect and time period, the global warming potential of methane over a 20 year time period is 72. The Earth's atmospheric methane concentration has increased by about 150% since 1750, and it accounts for 20% of the total radiative forcing from all of the long-lived and globally mixed greenhouse gases (these gases don't include water vapour which is by far the largest component of the greenhouse effect). Usually, excess methane from landfills and other natural producers of methane is burned so CO2 is released into the atmosphere instead of methane, because methane is a more effective greenhouse gas. Recently, methane emitted from coal mines has been successfully utilized to generate electricity.
Reference Link:
http://en.wikipedia.org/wiki/Methane
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Set the World on fire already--in a "positive" feedback way!
jtuck004
(15,882 posts)yellowcanine
(35,699 posts)Weeds respond to Carbon dioxide also.
jtuck004
(15,882 posts)RushIsRot
(4,016 posts)NickB79
(19,233 posts)Because the extreme weather swings we've been seeing up here in MN this spring have meant 90F one day, then dropping to 60F the next, with torrential downpours of 4" in ONE DAY, followed by weeks of no rain and high winds to the point that dust clouds roll off of farm fields and obscure the roads.
Hope you have strong tomato cages and a reliable source of water.
jtuck004
(15,882 posts)I'm not decrying the problems, and I think we are crazy for not addressing this, but the world is changing, and I think we are far beyond anything but learning to work with what we have created for ourselves.
Part of the problem is that we spent the last 50 years building a country on the back of pollution, now we want to get all moral and tell the rest of the world they need to do something different, have less stuff.
Yeah, that's gonna work.
And coming from a place where we created the Dustbowl, and where tornadoes come through and level - and I mean level - 1/2 mile wide swaths of homes and people, where it can be 103 degrees for 3-4 weeks, with spikes to 110, weather extremes are a fact of life.
Not looking forward to what is coming.
raouldukelives
(5,178 posts)If it were I'd expect to see my leaders and people around me taking a keen interest in the continued existence of things like people, furry things, trees that kinda stuff.
Luckily they all say invest in the corporations assuring our high milestones and keep consuming as much as possible. All the cool kids are! Drive like bats out of hell in behemoths. Just hurtle around almost nonsensically and spew as much pollution as you can out of the tailpipe of your lives before you depart this mortal coil. Fly everywhere you can. Now! Grab lunch in Miami and dinner in New York. Ah well. You gotta feel for some people. They may lament not leaving behind a great American novel or an NFL rushing title to be remembered by but whenever someone in the future flips the pages in a book showing overflowing gardens and clean, clear waters filled with life they will certainly remember their legacy.
Gregorian
(23,867 posts)Even if we engineer bridges to the renewable future, we still have huge numbers of people turning on to the modern lifestyle. China and India are still only in their beginning stages.
It's not somebody else's problem. You are in control of it. It means "not doing something". It is a problem, and it's going to take effort to change it.
Uncle Joe
(58,342 posts)Thanks for the thread, Purveyor.
truebrit71
(20,805 posts)RoccoR5955
(12,471 posts)for big businesses to sell us cool, clean air.
WTF- they sell everything else, can capitalism is failing, due to the finite resources on the planet. They have to find something else that they can sell.
Odin2005
(53,521 posts)harun
(11,348 posts)NickB79
(19,233 posts)Marrah_G
(28,581 posts)Skills are the important thing. I can now knit, crochet, can, garden and make soap My next skill to learn is processing and turning raw wool into yarn.
harun
(11,348 posts)can now make oil lamps out of clay, garden, grind grain, turn old electric motors in to wind turbines, charge batteries off of solar panels, drill a well with PVC pipes, compost all waste, basic welding and black smithing, etc.
All this from a Software Engineer .
More and more people are seeing they need to CYOA (Cover your own ass). I am definitely not one of these live in the woods the end is nigh types. Just hedging my bets lol.
Marrah_G
(28,581 posts)And frankly, the learning part is something I enjoy! I am a single mom so if the economy/environment crashes, I need to be able to take care of myself and my boys
WriteWrong
(85 posts)dipsydoodle
(42,239 posts).
Rhiannon12866
(205,109 posts)It ought to be in the headlines everywhere, but the "liberal media" is more interested in reporting Mittens' latest faux pas...