CO2 Now

 

What the world needs to watch

Global warming is mainly the result of CO2 levels rising in the Earth’s atmosphere. Both atmospheric CO2 and climate change are accelerating. Climate scientists say we have years, not decades, to stabilize CO2 and other greenhouse gases.

To help the world succeed, CO2Now.org makes it easy to see the most current CO2 level and what it means. So, use this site and keep an eye on CO2.  Invite others to do the same. Then we can do more to send CO2 in the right direction.

Watch CO2 now and know the score on global warming, practically in real time.

Weekly Data | Atmospheric CO2 PDF Print E-mail

 


Atmospheric CO2  - Weekly Data
Mauna Loa Observatory   |   NOAA-ESRL Data

Week

Atmospheric CO2 


  July 20 - 26 2014


398.52 ppm

(last week)


July 20 - 26 2013

 


396.42 ppm 

(1 year ago)


 


July 20 - 26 2004

 


376.59 ppm
 

(10 years ago)

 


Atmospheric CO2  -  Increase Since 1800
Mauna Loa Observatory   |   NOAA-ESRL Data

As of Last Week

Increase Since 1800 


July 20 - 26 2014


+ 118.52 ppm

NOAA-ESRL updated weekly data on July 27, 2014.  ("ppm" means parts per million)

 

Weekly Data & Info (Mauna Loa Observatory) 

 

NOAA-ESRL  |  Weekly CO2 Data Since 1974

NOAA-ESRL  |  Weekly CO2 Information and Links 

Scripps CO2  |  Daily CO2 Reports

Scripps CO2  |  Historical CO2 Data @Keeling_Curve

 

More Data & Info (Mauna Loa Observatory)

 

CO2Now   |   Global CO2 Board

CO2Now   |   Monthly  CO2 Data (Mauna Loa)   

CO2Now   |   Annual CO2 Data (Mauna Loa & Global)

CO2Now   |  Acceleration of Atmospheric CO2

 

Daily & Weekly CO2 Graphs

 

The graph below is updated weekly by NOAA-ESRL.   It shows the daily and weekly (Sunday through Saturday) mean concentration of carbon dioxide measured in the atmosphere at the Mauna Loa Observatory in Hawaii, USA. 

 
Source:  NOAA - ESRL Weekly CO2 Trends  |  High Resolution PDF

 

 

The next graph from the Scripps CO2Program shows the latest weekly (and daily) data for atmospheric CO2 at the Mauna Loa Observatory. 

 http://bluemoon.ucsd.edu/co2_400/mlo_one_week.png

Source:   Scripps CO2 Program: KeelingCurveUCSD.edu



 
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