Our logo is an abstraction of the chemical representation of ice (see diagram below). An important part of our mission is to be “defenders of natural ice,” wherever it may exist. The melting of the Earth’s natural ice reserves is highly likely to result in catastrophic impacts worldwide, so it is in our collective best interest to reduce melting through reducing greenhouse gasses. To learn a bit more about the chemical structure of ice, check out this interesting web page.
In our logo, the dark green circles represent atoms of Oxygen and the tan circles represent atoms of Hydrogen. As shown in the diagram, ice has a crystalline structure as opposed to water which is amorphous. As a result, ice is less dense than water and therefore it floats.