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A global food system supplies dragonfruit and caviar by ship instead of plane, keeping the distance the...

A global food system supplies dragonfruit and caviar by ship instead of plane, keeping the distance the same. Which choice lowers gases the most?
Larger ships carrying mixed cargo
Longer shelf storage times
Extra insulation during storage
Slower transport per unit

Answer

The choice that lowers gases the most is:

Slower transport per unit

Slower transport per unit effectively reduces the greenhouse gas emissions associated with shipping. When ships operate at reduced speeds, they consume less fuel per mile traveled. This is due to the physics of hydrodynamics, where slower speeds result in lower resistance and, consequently, less energy required for propulsion. Moreover, slower shipping times can lead to optimized fuel consumption as vessels can plan more efficient routes and reduce the need for rapid acceleration and deceleration.

Additionally, while larger ships carrying mixed cargo can be more efficient than smaller vessels, the emissions savings from transporting goods at a slower speed typically outweigh the benefits of size alone in many scenarios. Longer shelf storage times and extra insulation during storage can help reduce spoilage and waste but do not directly impact the emissions produced during transport. Therefore, among the listed options, slower transport per unit has the most significant potential for lowering greenhouse gas emissions in the global food system.

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