A tugboat powered by ammonia sailed for the first time Sunday in the Hudson River to show how the maritime industry can slash ...

A tugboat powered by ammonia eased away from the shipyard dock and sailed for the first time to show how the maritime ...

On a tributary of the Hudson River, a tugboat powered by ammonia eased away from the shipyard dock and sailed for the first ...

The tugboat's first sail on Sunday night is a milestone in a race to develop zero-emissions propulsion using renewable fuel, ...

More states are considering legislation to make the largest fossil fuel companies pay for the impacts of climate change, and ...