Warmth in a Changing Climate: more thinking required

I have always wondered why a think tank is so named. Is it supposed to be like a military tank, that trundles through battlefields and cities firing shells or a fish tank in which in a special environment sheltered for the protection of the thinkers the thinkers can operate. Perhaps it is a water tank, with thinkers encapsulated inside, shielded, but that cannot be it. Continue reading