Yes, but that carrying capacity is enhanced by technologies and methods unknown at the time of a particular calculation, so is impossible to compute, as the data isn’t static.
Modern science has increased our ability to raise food far above the needs of the 8 billion that live at this time. Any famine or hunger nowadays are due to human war and criminal activity. We grow enough to feed everyone.
One could even argue the coming warming (of which the potential benefits never seem to be spoken of) of the Northern latitudes will bring vast ranges of Taiga in Canada, Alaska and Siberia under the farmer’s plow.
Yes.See #21.
-Crop rotation
-Dried preserves
-Irrigation
-Storage
-Canning
-Vacuum Sealing
-Refrigeration
-Fertilizer delivery systems
-Mechanical harvesting
-Food Preservatives
-Irradiation
-Transportation technology and infrastructure to move food from growing regions to regions in winter dormancy
-etc.