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		<title>Powered by Joomla! 1.0</title>
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		<link>http://co2now.org</link>
		<lastBuildDate>Wed, 22 May 2013 07:13:12 +0100</lastBuildDate>
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		<item>
			<title>Earth's CO2 Home Page</title>
			<link>http://co2now.org/Current-CO2/CO2-Now/earths-home-page-for-atmospheric-co2.html</link>
			<description>




 
 
 
 
398.35ppm
 
 
Atmospheric CO2 for April 2013
Preliminary monthly average as of May 2, 2013

(Mauna Loa Observatory: Scripps CO2 Program)
 
UPDATE:  On May 10, 2013, NOAA  (http://researchmatters.noaa.gov/news/Pages/CarbonDioxideatMaunaLoareaches400ppm.aspx)  Scripps  (https://twitter.com/keeling_curve)reported daily averages that temporarily reached 400 ppm. 
Click here (http://co2now.org/Current-CO2/CO2-Now/global-co2-board.html) for CO2Now updates throughout the month.

Thursday May 2, 2013 (http://www.co2now.org/Current-CO2/CO2-Now/Current-Data-for-Atmospheric-CO2.html)


 

 


Measuring Location:

Mauna Loa Observatory (http://www.co2now.org/Know-CO2/CO2-Monitoring/mauna-loa-co2.html), Hawaii


 




 

 


Why is CO2 significant?

Carbon dioxide (CO2) is the chief greenhouse gas that results from human activities and causes global warming and climate change. To see whether enough is being done at the moment to solve these global problems, there is no single indicator as complete and current as the monthly updates for atmospheric CO2 from the concentrations of CO2 in the atmosphere are increasing at an accelerating rate (http://www.co2now.org/Current-CO2/CO2-Trend/acceleration-of-atmospheric-co2.html) from decade to decade.   The latest atmospheric CO2 data is consistent with a continuation of this long-standing trend. 

 
 


 

 


What level is safe?

The upper safety limit for atmospheric CO2 is 350 parts per million (ppm). Atmospheric CO2 levels have stayed higher than 350 ppm since early 1988. 
 </description>
			<category>Current CO2 - CO2 Now</category>
			<pubDate>Tue, 26 Aug 2008 02:44:15 +0100</pubDate>
		</item>
		<item>
			<title>Current Data for Atmospheric CO2</title>
			<link>http://co2now.org/Current-CO2/CO2-Now/Current-Data-for-Atmospheric-CO2.html</link>
			<description>

The world's most current data for atmospheric CO2 is measured at the Mauna Loa Observatoy in Hawaii.  Measurements are made and reported independently by two scientific institutions:  Scripps Institution of Oceanography and the National Oceanic and Atmospheric Administration (NOAA).  Monthly data is posted below.    
Mauna Loa CO2 Data Sets:


    Monthly      NOAA CO2 Data
    Weekly        NOAA CO2 Data

    Monthly    Scripps CO2 Data 
    Daily            Scripps CO2 Data 
 
  |  Monthly  | </description>
			<category>Current CO2 - CO2 Now</category>
			<pubDate>Fri, 15 Aug 2008 19:21:18 +0100</pubDate>
		</item>
		<item>
			<title>Annual Data | Atmospheric CO2</title>
			<link>http://co2now.org/Current-CO2/CO2-Now/annual-co2.html</link>
			<description>
The 2012 average annual concentration of CO2 in the atmosphere (Mauna Loa Observatory) is 393.84 parts per million (ppm).   The 2011 average is 391.65 ppm.  
For the past decade (2003-2012) the average annual increase is 2.1 ppm per year.  The average for the prior decade (1993-2002) is 1.7 ppm per year.    Annual data for 2012 was first posted January 3, 2013, by the Scripps Institution of Oceanography in the United States.  
Since the 1958 start of precision CO2 measurements in the atmosphere, the annual mean concentration of CO2 has only increased from one year to the next.   The CO2 data below (http://co2now.org/Current-CO2/CO2-Now/annual-co2.html) provide a simple view of the annual trend.  </description>
			<category>Current CO2 - CO2 Now</category>
			<pubDate>Mon, 12 Oct 2009 09:02:32 +0100</pubDate>
		</item>
		<item>
			<title>Global Temperature Update</title>
			<link>http://co2now.org/Know-the-Changing-Climate/Temperature/global-temperature-update.html</link>
			<description>



 

video (http://www.weforum.org/sessions/summary/resilient-dynamism)][text (http://www.imf.org/external/np/speeches/2013/012313.htm)] 


Global Temperature Rankings




Rank 

Measure 

Month 

 Temperature

(above 20th Century average)


1st 

Warmest (in 134 years)


 March 2008

 +0.80°C


10th
 Warmest (in 134 years)
March 2013

 +0.58°C


 1st

 Coolest (in 134 years)

 March 1898

 -0.65°C

 
Data and information was retrieved April 18, 2013 from the National Oceanic and Atmospheric Administration (NOAA) and its National Climate Data Center (http://www.ncdc.noaa.gov/oa/ncdc.html) (NCDC) in the USA.  
More details about global temperature are available in the State of the Climate reports (Global Analysis) at the NOAA-NCDC website.  These reports present preliminary, global data that has been gathered from monitoring stations and leading institutions around the world.  The reports include a Extreme Temperatures (#temps) |--&gt;Tropical Cyclones (#tropical) |--&gt;Polar Events and Sea Ice (#polar) |--&gt;State of the Climate Global Analysis  |  REPORT (http://www.ncdc.noaa.gov/sotc/global/)
NOAA NDCC  |  2010 (http://www.ncdc.noaa.gov/sotc/global/2010/13)  |  2011 (http://www.ncdc.noaa.gov/sotc/global/2011/13)  |  2012  (http://www.ncdc.noaa.gov/sotc/global/2012/13)
NOAA NDCC PDF:   2010 (http://www.ncdc.noaa.gov/bams-state-of-the-climate/2010.php)  |  2011 (http://www.ncdc.noaa.gov/bams-state-of-the-climate/2011.php)   
 
 
Related:
GISS  |  Global Temperature in 2011, Trends, and Prospects (http://www.columbia.edu/~jeh1/mailings/2012/20120119_Temperature.pdf)
Climate Interactive  |  UNEP Emissions Gap Report   Temperature-Related Tools (http://climateinteractive.org/scoreboard/press/unep-emissions-gap-press-pack/)
The Royal Society  |  Four degrees and beyond (http://rsta.royalsocietypublishing.org/content/369/1934.toc)
CO2Now  |  The CO2Now Climate Sheet</description>
			<category>Cause and Effect - Temperature</category>
			<pubDate>Sat, 01 May 2010 15:14:18 +0100</pubDate>
		</item>
		<item>
			<title>The CO2Now Climate Sheet</title>
			<link>http://co2now.org/Current-CO2/CO2-Now/the-climate-sheet.html</link>
			<description>
Data current as of May 2, 2013
Climate Sheet posts the world’s most current and important planetary data and targets – together in one place from leading global sources.  The CO2Now Climate Sheet enumerates the chain of causes that are driving humanity’s largest environmental crises – global warming, climate change and ocean acidification.  It also sets out key scientific markers for a stable climate system.</description>
			<category>Current CO2 - CO2 Now</category>
			<pubDate>Sat, 01 Jan 2011 20:01:27 +0100</pubDate>
		</item>
		<item>
			<title>Global Carbon Emissions</title>
			<link>http://co2now.org/Current-CO2/CO2-Now/global-carbon-emissions.html</link>
			<description>http://forio.com/simulation/climate-development/ (http://forio.com/simulation/climate-development/)




Global CO2 Budget 2010
GlobalCarbonProject.org posted data for the 2010 Global Carbon Budget on December 5, 2011.  Key findings are listed here:
* CO2 emissions grew 5.9% in 2010 to reach 9.1 GtC (33.5Gt CO2), overcoming a 1.4% decrease in CO2 emissions in 2009 
* Including land-use change and deforestation, in 2010 emissions reached 10.0 GtC (36.8 Gt CO2)
* As of 2009 developing countries now emit more than developed countries in terms of consumption, and China now emits more than the US in terms of consumption
&amp;gt;&amp;gt;&amp;gt;&amp;gt;  Links to the source data, credits and high-resolution images are given below (http://co2now.org/index.php?option=com_content task=view id=190 Itemid=31).</description>
			<category>Current CO2 - CO2 Now</category>
			<pubDate>Sun, 31 Jan 2010 19:37:00 +0100</pubDate>
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