The World’s largest production process

Does the larger manufacturing process produce cars or a similar process? The New York Times said: The world's largest single production process occurs in one of the smallest units of viable cells in green plants. The manufacturing process is. . . Photosynthesis.

This process converts 100 billion tonnes of inorganic carbon into vital organic forms each year. Even so, all the major blast furnaces in the world would each produce only 500 million tonnes of steel. ""