The State of Our Climate
The site for vital climate data in monthly images
ACCELERATING PLANETARY EMERGENCY SIGNS
Mean atmospheric
greenhouse gases
NOAA Mauna Loa
Nov 2021
CO2 417 ppm
CH4 1889 ppb
N2O 334.5 ppb
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 (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)
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
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
EARTH GHG EMERGENCY
> All GHG emissions increasing fast
> All GHG emissions increasing fast
> CO2 emissions accelerating
> All atmospheric GHGs increasing fast
> Accelerating atmospheric CO2
> Accelerating global (& recent increase) warming
> All atmospheric GHGs increasing fast
> Accelerating atmospheric CO2
> Accelerating global (& recent increase) warming
> Accelerating ocean heat
> Accelerating ocean acidification
> Accelerating ocean de-oxygenation
> Accelerating ocean acidification
> Accelerating ocean de-oxygenation
2021 WMO State of the Climate in 2020
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
WMO Oct 2017
2020 State of Climate
Aug. 2021 BAMS Bulletin American Met Society.
Most comprehensive
Aug. 2021 BAMS Bulletin American Met Society.
Most comprehensive
D.
WMO ACCELERATING IMPACTS
March 2020 WMO State of Climate Pivotal year
High lights
March 2020 WMO State of Climate Pivotal year
NOAA 2021 ,CO2 Eq. 2020: 504 ppm
Abrupt Global Heating, Feb.2020,pdf
NOAA l atmospheric
greenhouse gas trends
Accelerating
greenhouse gas trends
Accelerating
Expanded monthly indicator list by J. Hansen,
M. Sato (Columbia Earth0
M. Sato (Columbia Earth0
4 Aug 2020 Cumulative CO2 emissions on WORST-CASE SCENARIO
NOAA Sept 2020 Record
N. hemisphere summer heat
N. hemisphere summer heat
Atmospheric CO2
Nov 2021: 417.04 ppm
Nov 2021: 417.04 ppm
NASA Time Machine
interactive data
interactive data
Scott Duncan Weather & Climate
Autumn 2021 Land :1.63C
Anuual Global 2020 1.25C
CARBON SINKS Globally from 2011-2020 decade, climate change reduced the land sink by ~15% and the ocean sink by ~5% (Global Carbon Project Nov 2021)
