Shipping

The enormous traffic in imported goods is generating a huge amount of disease-causing pollution in and around ports, and along trade routes.

Toyota has hired two firms to build solar panels to augment the diesel engines on their car-carrying behemoths. The result will be a cut in CO2 emissions of 1 to 2 percent per year, or about 20 tons.

For the first time in recorded history, the Northwest and the Northeast passages are free enough of ice to be navigable. Shipping companies welcome this effect of global climate change.

Humboldt's port shows promise, but would require massive investment. Goldman Sachs expresses an interest, surprising locals.

Railroads are overcoming decades of resistance from environmentalists by touting their greener aspects.

Former Russian president Vladimir Putin has announced his intentions to propose that Russia and the United States move forward with plans from the early 20th century to build a 64-mile tunnel between the two countries.

A ring road covering more than 1,500 miles in Afghanistan has eased shipping in the country, but traveling along the new pavement is still dangerous.

South Korea's new president has proposed the engineering and construction of a huge cross-country canal -- a plan he hopes will revive much of the country's depressed villages and offer an attractive venue for tourists and shipping companies.