The State of Our Climate
The State of Our Climate System
The site for vital climate data in monthly images
ACCELERATING PLANETARY EMERGENCY SIGNS
CO2 411 ppm
CH4 1875 ppb
N2O 332.5 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 220.127.116.11)
Site maintained by Peter Carter
Mar 2016 Nature The terrestrial biosphere as a net source of greenhouse gases
2017 Atmospheric CO2 Equivalent 493 ppm
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
Accelerating atmospheric CO2
Surging methane 1750-Sept 2018
20 May 2019.
This equals the 2016 record of 3.0 ppm with the big El Nino