What are the considerations for landing on ice runways?
In Greenland there are a number of ice runways and I have heard that it is no difficulty landing on them. One would think they would be slippery and the aircraft might slide off the runway or ground loop. However apparently that does not happen.


Yes it does.  Go to Youtube and search for "Alton Bay Ice Runway" for examples.


  Are there any special considerations for landing on an ice runway? 


First, understand that you are making a short field landing, NOT a soft field landing.  A soft field landing (well, mine anyway!) will eat up much more runway length.  Ice is hard, and you can hammer it down if necessary.

Second, do not use your brakes until under about 5 knots. Use aerodynamic braking instead.  Yoke full back on the ground.   


  Is there an increase in minimum landing distance?


Yes!  Aerodynamic braking is pretty ineffective below 20-30 knots.