‘Take care of the small things and the big things will take care of themselves.’ What is the relevance of this statement in the context of the Antarctic environment?

The statement, ‘Take care of the smaller things and the big things will take care of themselves’ has a universal relevance. Although the author has explained it with the example of phytoplankton,  the underlying meaning is that every person can contribute in his own little ways to protect the environment and society. If we take small initiatives like switching off the light when not needed, not using plastic bags, keeping a check on pollution by emitting less carbon dioxide, saving water etc., then the average global temperature will not increase. The glaciers of Antarctica will not melt, and the world may be saved of a possible early end.