The earths carrying. Capacity
Now the knowledge about historical events is almost automatically updated and hierarchically set in the Internet. All the new information we have to find in one place. We have many sources of information that describe one event from different angles. Finally, the technology allows to play back events, e.g. battles, which allows to better understand the context.
They faced many growing population along with many harvests that are poor. Even they faced lots of corruption and lots of opium addiction during the Taiping Rebellion.
It demonstrated that adding iron to the ocean can incite an unobtrusive phytoplankton sprout, however insufficient to bring about major climatic change. Later investigations demonstrated more prominent microscopic fish sprout. General it bolstered the speculation, however, it wasn't the last word.
It is as yet vague on the off chance that it would be conceivable or moral to incite worldwide tiny fish sprouts to diminish barometrical CO2