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, 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.

CO2 Widgets
The Data Speaks for Itself PDF Print E-mail

 Millions of CO2Now Widgets Served distributes the world's latest data for atmospheric CO2 as measured at the Mauna Loa Observatory in Hawaii.  This is where high-precision CO2 monitoring was started in March 1958 by Dr. Dave Keeling of the Scripps Institution of Oceanography.   The Mauna Loa Observatory is a remote location where CO2 is well mixed in the atmosphere, more than two miles above sea level. 

PPM CO2 Widget Series PDF Print E-mail


CO2   CO2   CO2   CO2   CO2


Widget code for PPM CO2 widgets was updated in November 2015.   At the same time, the PPM web widgets moved to, the new "home of the CO2 widgets." 

Click here to get widget code for this series of CO2 web widgets.


What's Happening


After 7 years of re-posting and re-distributing the latest readings for atmospheric CO2, has moved to  All widgets at are 'moving up' as 2015 comes to a close.  Here's how:

  1. Widget code is being upgraded to ensure compatibility with newer, 'responsive' websites that are optimized to perform on devices with a wide range of screen sizes.
  2. The widgets get their own website:  This is a new 'sibling site' for  It is now being set up to enable people to show the latest indicators of planetary health. CO2 web widgets are only the beginning.
  3. Widgets are available in more sizes.   (The PPM CO2 widget is now available in 20 sizes from 30 pixels wide to 1000 pixels wide!)


Old Widget Code


If you use web widget code from, the widget on your site or blog will continue to update automatically throughout 2016. In December 2015, "click throughs" from CO2Now-sourced widgets will be redirected to CO2.Earth.

A plan to phase out these widgets will be developed late in 2016.  Old CO2Now widgets may stop working during the 2017 calendar year. 




Take advantage of new, improved widget code at the site.  Upgrade your widget code at your earliest convenience.  You will be helping more people access an important, bigger picture on the changing health of our planet--and the conditions we need to create to achieve stabilization.




Email This e-mail address is being protected from spam bots, you need JavaScript enabled to view it if you have questions or requests about CO2 web widgets. 


Nano CO2 Widget Series PDF Print E-mail


CO2 Data   CO2 Data   CO2 Data

Nano CO2 widgets are available in three sizes:  60, 70 and 80 pixels square.  With these small widgets, the latest data for atmospheric CO2 can be displayed from anywhere on any webpage or blog. 

CO2Now widgets are easy to install.  Widget code and simple instructions are provided below. 

Rio 92 Widget PDF Print E-mail
CO2 Data

The Rio 92 CO2 widget takes its name from the 1992 Earth Summit in Rio de Janeiro, a hopeful and key event in the history of humanity's response to the problems of global warming and climate change.  This is also the point when countries started to sign the United Nations Framework Convention on Climate Change (UNFCCC). 

Did you know that atmospheric CO2 was 364 parts per million (ppm) during the Earth Summit in June 1992?  In the past decade, atmospheric CO2 has been rising about 1.9 ppm per year.  This is the fastest rate since scientists started using high-precision instruments to take CO2 measurements directly from the Earth's atmosphere. 

Rising levels of atmospheric CO2 are at the heart of humanity's most significant sustainability problems.  Changing this trend is key to ending global warming, climate change and ocean acidification.  Use this rounded, 92 x 92 widget on your website to raise the profile of the world's most current data for atmospheric CO2.  Let it be known that more needs to be done to make planet Earth a safe and stable place for raising a civilization.  

Adding a widget is easy.  Simple instructions and code for the Rio 92 widget are provided below. 


Charney CO2 Widget Series PDF Print E-mail

Atmospheric CO2   Atmospheric CO2   Atmospheric CO2   Atmospheric CO2   Atmospheric CO2

This series of CO2 widgets is named after Jule Charney, the distinguished MIT meteorologist who led a nine-member Ad Hoc Group of Carbon Dioxide and Climate. This group was appointed by US President Jimmy Carter in 1979. After meeting for five days at the National Academy of Science's summer study center, in Woods Hole, Massachussetts, the group affirmed, "If carbon dioxide continues to increase, the study group finds no reason to doubt that climate change will result and no reason to believe that these changes will be negligible."

To add a Charney widget to your site, simple instructions and html code are provided below. 

CO2 Toaster Widgets PDF Print E-mail

October 24: Global Day of Climate Action



The CO2 Toaster Widget was launched here at as one of more than 5,000 climate actions that happened around the world on October 24, 2009.   This active little graphic grabs attention and shares important information about our planet.   Not only does it say what CO2 is right now, it shows what CO2 has been, and what it should be. 

To plug this nifty widget into your site, click the "share" button that's built into the widget, or grab the HTML widget code below.  (Some instructions are also available below.)

Tyndall CO2 Widget Series PDF Print E-mail

Atmospheric CO2 data    Atmospheric CO2 data    Atmospheric CO2 data

The Tyndall series of CO2 widgets is named in honour of John Tyndall. This is the Irish scientist who, in 1859, built the world's first ratio spectrophotometer.  With this instrument, Tyndall identified the natural greenhouse effect that is now recognized as an essential condition of life on Earth.

Like all CO2Now widgets, the Tyndall widgets are udated in the second week of every month to keep the Earth's latest data for atmospheric CO2 on continous display.  The colourful and informative Tyndall widgets are available in seven sizes, from 144 pixels wide to 200 pixels wide.    To add one of these widgets to a website, use the code and simple installation instructions below. 

Pro Oxygen Widget Series PDF Print E-mail


Atmospheric CO2 data   Atmospheric CO2 data

The Pro Oxygen 300 widgets are displayed on every page of  Add the widget to your website or blog, and the Earth's most current data for atmospheric CO2 will not just get displayed.  The data will be updated each month.  

Brundtland CO2 Widget Series PDF Print E-mail

Atmospheric CO2 data and trend


The Brundtland 600 widget is named in honour of Gro Harlem Brundtland, former Prime Minister of Norway.  She now serves as a Special Envoy on Climate Change for the United Nations Secretary-General Ban Ki-moon

In 1983, Brundtland established and chaired the World Commission on Environment and Development (WCED), widely referred to as the Brundtland Commission, developing the broad political concept of sustainable development in the course of extensive public hearings that were distinguished by their inclusiveness and published its report Our Common Future in April 1987. The Brundtland Commission provided momentum for the 1992 Earth Summit/UNCED, that was headed by Canadian Maurice Strong, a prominent member of the Brundtland Commission.

High Resolution CO2 Graphics PDF Print E-mail

High Resolution CO2 Graphics 

Show the latest readings for atmospheric CO2 far and wide--and update them very month.   Since 2008, has been helping webmasters show the rising CO2 trend with CO2Now website widgets.  

As of 2014, high-resolutions versions of the widget graphics are now available for use by anyone, anywhere.  Use the graphics to show the CO2 numbers and trend in your media presentations, printed posters, newsletters, or books. Download the graphics here...

Worldwide Widget Users PDF Print E-mail
          John Englander: High Tide on Main

A Sea Change
District of Saanich Sustainability
                    Climate Store



Low Carbon Girl

Widgets from CO2Now are used on websites of all kinds around the world.  They display the current level of atmospheric carbon dioxide from tens of thousands of web pages to millions of people.  Some live examples are linked  below.  

Designer Widgets PDF Print E-mail


 If you were to design a CO2 widget, what would it look like?   Would you want to create a designer widget for anyone to use?  Or, something unique for your own use and distribution?

Widget Help PDF Print E-mail


Widget Help Centre

Click on the installation destination below to get step-by-step installation instructions:


Blogger Widget Installation Instructions  [offsite instructions]

WordPress Widget Installation Instructions