What are the main effects of land, air, and sea trade routes on the environment and what component of trade contributes most to the United States economy, and what happens when trade routes become unavailable?

Canals

Cargo Shipping

Land travel

Air Travel

Suez canal

Pandemic

Shiping

Environmental impact

Ocean sustainability

Airlines/cargo

Global transportation and shipping

Global co2 emissions due to travel

Gasoline/oil

Pandemic gas increases

Inequality in wealth

Oil wars

Semi trucks

electric cars

self driving cars

co2 emissions

Elon Musk

Tesla

Space X

Countries controlling trade

Plane ticket prices

Amazon

Drones

Ecosystems

Reliability

Endangered Species

Ocean Exploration

Electric Self Driving Semi trucks

Dependencies on trade

Unfair trade laws

Laws/bills against/with trade

US involvement in trade

Geographical impact due to shipping lanes

Land affected by shipping lanes/people

Pirates

Trains

Coal

Fossil fuels

Railways

Public transportation

Mining

fracking

Suggestions

Economic drawbacks/benefits

US impact with trade

Foreign Trade Impact

Limitations with trade

Future improvements

Environmental improvements