Part One
Signifier: The words “Melting Away”
Signified: A Melted Earth on an Ice-cream cone.
Part Two
Representament: Indexical sign showing the planet melting. Global Warming.
Interpretant: The Interpretant i(myself anyways) sees a melting planet on a cone, and by extension, seeing “Global Warming.”
It's very clear this is a graphically made ad of what I believe is referencing global warming. This is very obviously decoded by seeing the fact that there is a melted planet on a cone. But the second half of the message is that it's not "too late" because the planet is totally melted, and the words say "Melting Away" not "Melted Away."
