Contribution to Global Warming

I was walking by the largest pond at Homewood at Plum Creek this morning when I noticed the pond looked different.  There was still a light coating of ice on the outer edges but the fountain had melted the ice around the fountains and the water surface was covered by bubbles.  The air temperature was up to 50 degrees F.

I suspect this is Homewood’s contribution to global warming.  The warming water is allowing the decaying vegetation to release methane gas bubbles into the air.