Why are boats more efficient than airplanes?

They use less fossil fuels to move

Boats also carry much more freight than an airplane, so fuel usage per unit shipped (or per pound) is much less.

http://www.bing.com/search?q=efficiency+of+shipping+by+sea+versus+air&form=EDGNTC&qs=PF&cvid=13f1a9582b2e412eb38becb984ed12f0&pq=efficiency%20of%20shipping%20by%20sea%20versus%20air

Boats and airplanes operate in different environments and have distinct design considerations that impact their fuel efficiency. However, in certain contexts, boats can be more fuel-efficient than airplanes due to a few key factors:

1. Energy Requirements: Boats typically require less energy to move through water compared to airplanes flying through the air. Water offers more resistance to movement than air, but boats can take advantage of buoyancy to partially offset this resistance. Airplanes, on the other hand, need to overcome air drag, leading to higher energy consumption.

2. Weight and Aerodynamics: Boats typically have a simpler and more streamlined design compared to airplanes, which require more complex structures to provide lift and maneuverability in the air. This simplicity in design and lower weight contribute to better fuel efficiency for boats.

3. Speed: Generally, boats travel at lower speeds than airplanes. As speed increases, air drag becomes a more significant factor, significantly impacting fuel efficiency. Airplanes typically operate at high speeds, whereas boats favor slower, more fuel-efficient speeds.

4. Distance and Infrastructure: Boats are commonly used for shorter distances, such as commuting or local shipping, where the overall energy consumption is relatively lower compared to long-haul flights. Additionally, the infrastructure required for boats, such as ports and canals, is often more energy-efficient than building and maintaining airports for airplanes.

It's important to note that the comparison between boat and airplane efficiency can vary depending on the specific type of boat or airplane, their size, purpose, and operational conditions. To obtain more detailed and precise information on the fuel efficiency comparison, you could refer to scientific studies, industry reports, or consult experts in the field of transportation and energy efficiency.