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.
CO2Now.org 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 means "parts per million." This is the unit that scientists use to measure the concentration of carbon dioxide in the Earth's atmosphere. For people who are working to stop the rise of atmospheric CO2 levels and get them falling back to safe levels below 350 ppm, PPM can have a second meaning. As Bill McKibben of 350.org puts it, PPM is the "People Powered Movement" that is working to create a prosperous, low-carbon economy.
At CO2Now.org, the small PPM widgets make it possible to display the latest data for atmospheric CO2 from any web page. The continuous year-over-year rise of CO2 levels is a constant reminder that more needs to be done.
Below, widget code is available in fives sizes: 35, 40, 45, 50 and 55 pixels wide. Each size is on display above.
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.
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.
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.
The Pro Oxygen 300 widgets are displayed on every page of CO2Now.org. 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.
Get high-resolutions versions of CO2Now data graphics on this web page. All of these graphics are png files (RGB). Most image files are about 4 MB. Image widths range from about 720 to 1600 pixels.
These graphics are for people who want to make the reality of "rising CO2" widely visible and understood, as we do. The high-resolution files are new as of March 2014. We're curious how people may use the graphics. In the past, they have been used by special request in powerpoints, newsletters, MOOCs and posters. Stories and pictures are welcome at