H/t Richard Drake and Robin Guenier for describing Ed Davey, our lost and confused Energy & Climate Change Secretary, as a Solitary Lemming - see here. Ed has been saying that "Britain must lead the international battle against global warming". It's not been a good week for the Lib Dems has it.
As you may know the idea that Lemmings jump over cliffs is a made-up myth. Which is kinda the point of the toon ;-)