The State of Our Climate
The State of Our Climate System
The site for vital climate data in monthly images
ACCELERATING PLANETARY EMERGENCY SIGNS
The site for vital climate data in monthly images
ACCELERATING PLANETARY EMERGENCY SIGNS
Atmospheric
greenhouse gases
2016
CO2 404 ppm
CH4 1854 ppb
N2O 329 ppb
greenhouse gases
2016
CO2 404 ppm
CH4 1854 ppb
N2O 329 ppb
Atmospheric CO2 15 million year high
Already committed future warming
& 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 12.5.4.2)
& 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 12.5.4.2)
Site maintained by Peter Carter
Warming accelerating
NOAA Jan 2015 Last 50 years,temperature increase 0.13°C/ decade-almost double 0.07°C/decade of
previous half-century. Since 1970-1980 3X the average 20th century rate.
NOAA Jan 2015 Last 50 years,temperature increase 0.13°C/ decade-almost double 0.07°C/decade of
previous half-century. Since 1970-1980 3X the average 20th century rate.
Atmospheric greenhouse gases
Atmospheric CO2 is rising at an
unprecended rate (IPCC AR4 WG1 FAQ 7.1 para 1) and at a 20 milliion year high
(Sc.Am. Mar 2015)
unprecended rate (IPCC AR4 WG1 FAQ 7.1 para 1) and at a 20 milliion year high
(Sc.Am. Mar 2015)
Atmospheric methane has increased over
two and a half times since 1800
(IPCC AR5 WG1 p.161 .Ch2 Exec Sum
two and a half times since 1800
(IPCC AR5 WG1 p.161 .Ch2 Exec Sum
2015 atmospheric CO2 equivalent 481 ppm WMO 2016 (includes the other GHGs)
NASA Video
atmospheric
CO2 2002-2014
atmospheric
CO2 2002-2014
2000-2015
NASA Video
Five-yearly
temperature
1880 to 2015
Five-yearly
temperature
1880 to 2015
The 1992 UN climate change convention requires safe levels of atmospheric greenhouse gases
8 Mar 2016 New Scientist Highest ever annual rise in carbon dioxide levels recorded
Scripps Mar 2016. 'Today's dramatic atmospheric CO2 increase is 200X the rate of the last end glacial natural warming'. The NOAA news release
Scripps Mar 2016. 'Today's dramatic atmospheric CO2 increase is 200X the rate of the last end glacial natural warming'. The NOAA news release
Mar 2016 Nature The terrestrial biosphere as a net source of greenhouse gases
Dec 2016 paper Atmospheric CO2 increase rate unprecedented in Earth history at > 3ppm/yr.
March 2017dit
Accelerating atmospheric GHGs
Nov 2016 WMO provisional Statement on the Status of the Global Climate in 2016.
March 2017 Planet emergency
ignored for too long-
catastrophic impacts unavoidable
ignored for too long-
catastrophic impacts unavoidable
OCEANS
UK MET Office March 2017 The reviewed 2015 atmospheric CO2 increase was 3.39 ppm. With no El Nino the 2017 forecast is 2.46 ppm still much higher than the 10 yr average of 2.1 ppm/yr
