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From San Francisco to Stockholm, a new generation of electric ferries is entering passenger service, marking a tipping point for green maritime technology.

The actual eco-friendliness of ecotourism varies considerably. One research station in the Peruvian Amazon is out to prove it can bring visitors to the area without disrupting the environment.

The actual eco-friendliness of ecotourism varies considerably. One research station in the Peruvian Amazon is out to prove it can bring visitors to the area without disrupting the environment.

From San Francisco to Stockholm, a new generation of electric ferries is entering passenger service, marking a tipping point for green maritime technology.

As the conflict in Iran disrupts the world’s oil supply, airlines are looking for jet fuel alternatives. The answer: energy from used cooking oil and french fry grease.

As the conflict in Iran disrupts the world’s oil supply, airlines are looking for jet fuel alternatives. The answer: energy from used cooking oil and french fry grease.

Your trip starts impacting the planet before you even leave home. Here are a few pointers for keeping your footprint small.

Your trip starts impacting the planet before you even leave home. Here are a few pointers for keeping your footprint small.

Hotels and other service providers pitch themselves as eco-friendly when they’re not. Here’s how to call their bluff.

Hotels and other service providers pitch themselves as eco-friendly when they’re not. Here’s how to call their bluff.