The State of Our Climate 
NOAA GHG
monitoring

​data visualization​
NASA Earth Observation
​global maps  ​
LONG TERM TENDS

PLANETARY EMERGENCY SIGNS
Atmospheric 
greenhouse gases​ 2015


 CO2    400 ppm
​ CH4  1850 ppb
​ N2O    325 pp
b
Atmospheric CO2 ​15 million year high​
Univ. Bremen
Arctic sea ice
SPEI ​
Global drought
Abrupt increase
​radiative forcing

​(increasing Earth
​system ​heat from GHGs

      Atmospheric Greenhouse Gases

​      800,000 years                       20,000      10,000           
The State of the Climate (BAMS)
 Bulletin American      Meteorological Society 


Feb 2015  Atmospheric CO2 400ppm is a 15 million to 20 million year high​​ on concentration and rate.
t.
WMO State Climate 
March 2015 PDF​
James Hansen 2015
​2014 record
Warming,  atmospheric GHGs
& radiative forcing (heat added
​to the climate system ​
Emissions
11,000
Ocean acidification at a 20 million year high and a 300 million year high for the rate. (Jelle Bijma 2013)
800,000 yrs & recent  EPA
Earth's climate Timeline Open Knowledge 
Chronological History of Earth and  Climate