The State of Our Climate 

​​The site for vital climate data in monthly  images

Mean atmospheric 
greenhouse gases
NOAA Mauna Loa​
​​April 2021

      CO2    416.14 ppm
  ​CH4    1882 ppb
  ​  N2O    334.5 pp

 Already committed  ​future warming  ​
 and climate change

The radiative heat forcing of  today's atmospheric GHGs (above) commits the world to a global warming of 1.5C by 2030-2040 (IPCC AR5 WG1 Figure 11.6)  and full equilibrium warming of 2.0C.

'The current RF(radiative forcing) from GHGs maintained indefinitely (i.e., the commitment from constant greenhouse gas concentrations) would correspond to approximately 2°C warming.'  ​(IPCC AR5 WG1

Site maintained by Peter Carter
Atmospheric  CO2 is att a 23 million year high and  rising at anunprecedentedrate
The 1992 UN climate change convention requires safe levels of atmospheric greenhouse gases 
Mar 2016 Nature The terrestrial biosphere as a net source of greenhouse gases 

> All GHG emissions increasing fast
​> CO2 emissions accelerating 
> All atmospheric GHGs increasing fast
> ​Accelerating atmospheric CO2
> Accelerating global  (& recent increase)  warming
> Accelerating ocean heat​
> Accelerating ocean acidification
> Accelerating ocean de-oxygenation
Feb 2020 WMO State of the Climate in 2019
Accelerating atmospheric CO2 at a 3-5 million year high, has been  increasing at a rate over "the past 70 years of nearly 100 times larger than that at the end of the last ice age ... such abrupt changes in the atmospheric levels of CO2 have never before been seen".
WMO Oct 2017​

Bulletin of the
​American Meteorology
​Society. BAMS Aug 2020​
​State 2019 Global Climate
High lights​

​March 2020  WMO State of Climate Pivotal year 
March 2019
NOAA Atmos
​CO2 eq.  
May​ 2020: 500 ppm ​(for 2019)
 CO2 Eq. 2019: 500 ppm 
Abrupt Global Heating, Feb.2020,pdf
Expanded monthly indicator list  by J. Hansen,
​M. Sato (Columbia Earth Institute)

August 2020 PDF All climate change indicators, getting worse faster  
4  Aug 2020 Cumulative CO2 emissions tracking the very worst case scenario 
BAMS Aug 2020
NOAA  Sept 2020 Record
​N. hemisphere summer heat
Dec 2019 WMO Climate change accelerating 
Atmospheric CO2
​April 2021: 416.14 ppm
with spikes to 421 ppm​ !!

NASA Time Machine
interactive data​​
Scott Duncan Weather & Climate