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


May 20, 2015

Globally, April 2015 marks the 4th highest surface temperature for April since global temperature records began in 1880.  The coolest on record is April 1909. [NOAA Global Monthly Analysis--Temperature]


Recent News:

2015 Hottest Year to Date, Could Top 2014 Record  [Climate Central


"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 136 years)



(compared to 20th Century average)


April 2010 & April 2014

+0.77°C  /   +1.39°F

4th Warmest

April 2015

+0.74°C  /   +1.33°F


April 1909

 -0.54°C  /  -0.97°F




NOAA National Climatic Data Center, State of the Climate: Global Analysis for April 2015, published online April 2015, retrieved May 20, 2015 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  |  2014

NOAA NDCC PDF:   2010  |  2011  


Climate Central  |  Rising global temperatures and CO2

NCAR-UCAR |  How much has global temperature risen in last 100 years? 

Columbia U  |  Global Temperature 

MET Office  |  2015 global temperature forecast 

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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