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.

Global Temperature Update PDF Print E-mail


July 6, 2014

Globally, May 2014 was the warmest May since global temperature records began in 1880.  Four of the five warmest Mays have occurred in the past five years.  The coolest on record was May 1907. [NOAA Global Monthly Analysis]

Annually, 2013 tied 2003 as the 4th warmest year globally since 1880.  Nine of the ten warmest years in the past 134 years occurred since the Year 2000.  Only one year during the 20th Century--1998--was warmer than 2013.  [NOAA Global Analysis 2013]


"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



Global Temperature Rankings


(in  the past 135 years)



(above 20th Century average)


May 2014

+0.74°C  /   +1.33°F


May 1907

 -0.50°C  /  -0.90°F


From the coolest to the warmest annual average on record, the difference is 1.24°C or 2.23°C.  In 107 years, from 1907 to 2014, atmospheric CO2 has increased more than 95 parts per million from almost 300 ppm to about 396 ppm.

More about global temperature is 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.



NOAA National Climatic Data Center, State of the Climate: Global Analysis for May 2014, published online July 2014, retrieved on July 6, 2014 from


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  | 2013

NOAA NDCC PDF:   2010  |  2011  


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



Average Global Temperature (1850 - 2009)

Average Global Temperature 1850-2009

Countries that set a new temperature record in 2010:

17 countries that set a temperature record in 2010

SolveClimate  |  Record temperatures on 19% of Earth's surface

Original story and graphic  |  Climate Central


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