The State of Our Climate
The site for up to date vital climate change indicators in images
ACCELERATING PLANETARY EMERGENCY SIGNS
Mean atmospheric
greenhouse gases
NOAA Mauna Loa
Nov 2021
CO2 417 ppm
CH4 1889 ppb
N2O 334.5 ppb
Already committed future warming and climate change
The radiative heat forcing of today's atmospheric GHGs commits the world to a global warming of 1.5C by 2030-2040 (IPCC AR5 WG1 Figure 11.6) and full equilibrium warming over 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
Mar 2016 Nature The terrestrial biosphere as a net source of greenhouse gases
CLIMATE SYSTEM EMERGENCY
> All GHG emissions increasing fast
> CO2 emissions accelerating
> All atmospheric GHGs increasing fast
> Atmospheric CO2 accelerating
> Global warming accelerating trend > Ocean heat accelerating
> Ocean acidification accelerating
> Ocean de-oxygenation accelerating
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
2020 State of Climate
Aug. 2021 BAMS Bulletin American Met Society.
Most comprehensive
D.
All climate change indicators increasing fast
2021 global warming
Fossil CO2 emissions
Increasing atmospheric GHGs increase energy
Atmospheric GHGs
Radiative forcing: total heat added by GHGs
CO2 Equivalent is all GHGs
OCEANSmain climate system component
The world ocean is the main component of the climate system
416 +50% 1900+264% 334+24%
RF 1990 +47%
RF 1990 +47%
504 +83% 1700
7 A-bombs/sec
ARCTIC warming 3X global average
2021 Record decline sea ice volume
2021 Fossil CO2:36.4 Gt.
2019 GHG : 52.4 Gt. CO2 e
1.13C
and Record NH Summer land 2021
Accelerating warming since 2000
Warmest decade in 120,000 yrs (IPCC AR6)
+49%
1750
2020 Record NHemisphere
Summer of 1.4C
