Ships are one of the biggest threats to right whales, which are slow swimmers and hang out near the surface of the water, where they're susceptible to being hit.

CNN: Spotting endangered whales from the skies

Now striking pictures suggesting the presence of liquid water on the Martian surface have scientists believing we are getting closer to finding out.

CNN: Life on Mars?

Rather, as a consequence of injecting water and sand into the shale formation to crack the rocks so gas and oil will flow, massive amounts of waste water comes back to the surface with significant amounts of contaminants as a result of leaching out salt, heavy metals and trace amounts of radioactive materials from the rock formation itself.

FORBES: U.S. Energy Independence - So Close, Yet So Far

Surface tension in the water can sling the craft out of control or cause it to bounce violently.

FORBES: A Wing and a Prayer

Plymouth City Council said it had crews out clearing drains and dealing with surface water flooding after a large number of calls from people across the city.

BBC: Devon and Cornwall rail lines 'expected to reopen' soon

The Swedish government is funding research into the feasibility of using a wind-turbine driven oxygen pump in the Baltic, following studies carried out last year by the University of Gothenburg, which looked at the effect of pumping oxygen-rich surface water to the bottom of two Swedish fjords.

CNN: Can oxygen pump breathe life into ocean 'dead zone?'

Most models set up to try to figure out what happened during the Late Cretaceous climate changes conclude that water sank from the surface to the bottom of the ocean around Antarctica or the North Pacific.

FORBES: Could Fish Fossils Help Us Better Predict Climate Change?