One recent weapon is what frog-busters are calling a "hot shower chamber, " a modified freight container used by nurseries to ship plants, with multiple heads that spray heated water onto the plants and kill any coquis that might be lurking there.

WSJ: When It Gets Too Noisy in Paradise, They Call the Frog Whisperer

This puts the Copenhagen-based shipping company on track to post its first annual ever loss in 2009 after container freight rates and volumes dropped in the global downturn.

FORBES: Europe Lags As Maersk Founders

Since it takes two years to build a container ship, freight capacity is inflexible, so small changes in demand can cause marked changes in price.

BBC: The popcorn route to recovery