Being so far north, much of region - some 146, 000 square km - is covered by glaciers and ice caps (a type of ice field where glaciers flow off in many directions).

BBC: Canadian glaciers face 'big losses'

Recent studies indicate that when the lakes drain suddenly into the ice, the acceleration of flow is not sustained.

FORBES: Global Warming: Hotheads, Flatliners and Lukewarmers, Part One

Unfortunately, the idea is better than the movie: the adventures on and off the ice, and the endless flow of innuendo (lots of crotch jokes and winking allusions to homosexuality), signify humor without actually being funny.

NEWYORKER: Blades of Glory

The water, albeit in smaller volumes, continues to flow, forming unstable layers of snow, slush and ice (see 2:08 when Gadd sinks his hooks into a piece of snow that simply crumbles away).

BBC: Daredevil duo is the first to scale Niagara Falls

In particular, the participants set out to identify researchers and other qualified personnel from different Andean countries, who could form the nucleus of a Working Group on Snow and Ice within the framework of an Andean-FRIEND (Andean - Flow Regimes from International Experimental and Network Data).

UNESCO: Valdivia, Chile, 2003

One theory is that the summer sun melts ice on the surface of the glacier which creates pools of water which then flow into moulins -- narrow tubular shafts in the glacier.

CNN: Rubber ducks aid NASA study

The ice adds weight to an aircraft, and rough accumulations known as rime interrupt the flow of air over wings.

WSJ: NTSB: Pilot action, icing led to NJ plane crash

In addition, data from 2007 to 2010 show that CBP and ICE have increased their seizure of southbound illegal currency and enhanced efforts to disrupt the flow of weapons into Mexico.

WHITEHOUSE: Strengthen International Partnerships

The flow in the Mekong comes mainly from rainfall and some snow melt, not melting ice.

ECONOMIST: Letters