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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 & Scripps reported daily averages that temporarily reached 400 ppm.
Click here for CO2Now updates throughout the month.
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CO2 Data Set: |
Original Scripps data file dated Thursday May 2, 2013 |
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Measuring Location: |
Mauna Loa Observatory, Hawaii |
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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 Mauna Loa Observatory. |
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What is the current trend? |
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What level is safe? |
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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
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 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 provide a simple view of the annual trend. |
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April 18, 2013
March 2013 tied March 2006 as the 10th warmest March since global temperature records began in 1880. The coolest was March 1898.
Annually, 2012 was the 10th warmest year since 1880. Only one year during the 21st Century was warmer than 2012.
"The science is sobering—the global temperature in 2012 was among the
hottest since records began in 1880. Make no mistake: without concerted
action, the very future of our planet is in peril."
~ Christine Lagarde, Managing Director,
International Monetary Fund
[video][text]
Global Temperature Rankings
Rank |
Measure |
Month |
Temperature
(above 20th Century average) |
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1st |
Warmest (in 134 years)
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March 2008 |
+0.80°C
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| 10th |
Warmest (in 134 years) |
March 2013
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+0.58°C |
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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 (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 Global Hazardssection that gives a global update on drought & wildfires, flooding, storms, severe winter weather, and ecosystems impacts. A Snow and Ice section reports on snow cover in the Northern Hemisphere and sea ice extent in the Northern and Southern Hemispheres.
NOTE: Global temperatures set out in the CO2Now graphic (above) are computed from preliminary NOAA estimates of global average temperature for the 20th century and adding the current 20th-century anomaly.
Reference:
NOAA National Climatic Data Center, State of the Climate: Global Analysis for March 2013, published online April 2013, retrieved on March 18, 2013 from http://www.ncdc.noaa.gov/sotc/global/.
More Info from NOAA-NCDC:
NOAA NDCC | State of the Climate Global Analysis | REPORT
NOAA NDCC | Global land and ocean surface temperature anomalies since 1880 | DATA
NOAA NCDC | Q&As about global surface temperature anomalies | QUESTIONS & ANSWERS
State of the Climate Reports:
NOAA NDCC Web: 2010 | 2011 | 2012
NOAA NDCC PDF: 2010 | 2011
Related:
GISS | Global Temperature in 2011, Trends, and Prospects
Climate Interactive | UNEP Emissions Gap Report & Temperature-Related Tools
The Royal Society | Four degrees and beyond
CO2Now | The CO2Now Climate Sheet | |
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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. |
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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
>>>> Links to the source data, credits and high-resolution images are given below. |
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