Sentences with phrase «modern atmospheric measurements»
First of all, the supposed amount of «increase» is based on an «apples vs. oranges» comparison of proxy records (ice core reconstructions) with modern atmospheric measurements, a scientific incompetence.
https://wattsupwiththat.com/ Not exact matches
«scientists have assumed» «The climate models assume» «assumption that Natural CO2 is totally fixed and unchanging» «if you assume a long lifetime for atmospheric CO2 ″ «falsification of the basic assumption» «it requires assumptions that violate empirical knowledge» «assumed so that the ice cores and modern measurements fit together» «arbitrary and unjustified assumption»
I am not «denying» that a) there is a GHE which slows down outgoing LW radiation (OLR) b) that CO2 and H2O are GHGs c) that human activity generates CO2 (primarily from fossil fuels) d) that atmospheric CO2 has risen since Mauna Loa measurements started e) that globally and annually land and sea surface temperature has risen since the modern record started
Another, in regards to modern calculations, is that atmospheric measurements are usually restricted to a small number of absorption bands, owing to the limits of technology.
It's true that if you discard all the data on paleo CO2 from ice cores, and you discard modern direct measurements of CO2 in the atmosphere, then you could assume the existence of a natural increase in atmospheric CO2 greater than the fossil fuel emissions.
It is easy to show a) that temperature has risen in several multi-decadal spurts since modern measurements started in 1850, b) that atmospheric CO2 has risen since measurements started in 1958, c) that Arctic sea ice has shrunk since satellite measurements started in 1979, d) that sea level has risen, again in multi-decadal spurts, since tide gauge records started in the 19th century, etc..