By: D. Vogt
Canals and locks are types of artificial waterways constructed so that shipping can bypass difficult waters or reduce the length of a journey. Where ships need to be moved vertically from one water level to another, locks are built to make the transfer. Transportation canals...
By: Christyl Rivers
Plastic is necessary to modern life, at least until suitable substitutes are found. But in marine environments, even more so than in landfills, plastic is problematic. It has long been known that sea birds, turtles, some mammals and others starve or choke when ingested plastic...
By: Brenda Speegle
Off the shores of North Island New Zealand, a unique, potentially dangerous phenomenon continues to intrigue scientists and oceanographers worldwide. A huge methane seep, large enough to wreak havoc on Earth's atmosphere by emission of greenhouse gas, sits 600-1200 meters from the shoreline. The cool...

 

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