Proceedings of the National Academy of Sciences, Volume 123, Issue 13, March 2026. SignificanceMemory T cells, generated after an immune response, fall into two main groups, depending on whether they circulate between tissues and blood or are “resident” in tissues. Various phenotypic and functional properties characterize recirculating …
Observations from the Little Bunker
Last updated: April 07, 2026 06:45 PM
Atmospheric COâ‚‚
431.7 ppm
+18.3
ppm/year
Atmospheric CHâ‚„
1945.85 ppb
+8.44
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year