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Wednesday, September 23, 2020

Chetan et al. (2020) -- CO2 is "Greening' the Russian European Arctic

Chetan, M.-A., Dornik, A.,
Ardelean, F., Georgievski, G.,
Hagemann, S., Romanovsky, V.E.,
Onaca, A. and Drozdov, D.S.

2020

35 years of vegetation and
lake dynamics in the Pechora
Catchment, Russian European
Arctic.


Remote Sensing 12: 1863,
doi:10.3390/rs12111863.


FULL  SUMMARY  HERE:
http://www.co2science.org/articles/V23/sep/a7.php

MY  SHORT  SUMMARY  FOLLOWS:

Climate alarmists falsely claim rising temperatures will change the world's high-latitude terrestrial regions into vast wastelands and carbon dioxide sources. (i.e., satellite browning ). In reality, they are becoming increasingly greater carbon dioxide absorbers over the past several decades  (i.e., satellite greening).

Chetan et al. (2020) focus on the Pechora River Catchment -- over 400,000 square kilometers in the Russian European Arctic, during the summer season (July and August), from 1985 to 2019. They use satellite data for a Normalized Difference Vegetation Index (NDVI) -- a measure of vegetative photosynthetic activity. This Arctic area is yet another example of global 'greening' -- higher atmospheric CO2 stimulating biospheric productivity.

Figure 1:
Annual NDVI values from 1985-2019 (red line), with a long-term (+21%) greening since 1985 (blue line) and short-term (+42%) since 2002 (green line).

Figure 2:
Widespread 'greening' from 1985 to 2019)