1.   Corrosion Caused Cloudburst Corrosion in pipework has been blamed for a gas escape which triggered the operation cloudburst emergency plan in February.

2.   Corrosion in pipework has been blamed for a gas escape which triggered the operation cloudburst emergency plan in February.

3.   The exhaust gases escape through the same vent pipe used to supply air to the fire.

4.   All involve making the gas escape from the ice while it is still in place under the ocean floor.

5.   I coughed my way through a city stinking, rather excitingly, of coal smoke, gas escapes, tanyards, breweries, horse manure and urine.

6.   In neither case did hot gas escape beyond the primary seal, and the secondary seals were unscathed, officials said.