[Reeses]

Other harbors have underwater tube systems around the docs that blow compressed air bubbles to break down the ice.

No fair! We must have underwater bubbles around our "docs" too. And ours will be wind turbine powered. Having the government spend more taxpayer money will stimulate the economy and reduce unemployment. </s>

[RipSawyer]

Plenty of beans and sweet potatoes will make the “doc” emit his own compressed air bubbles.