Times (UK): A TINY London trading firm is at the centre of a shadowy chain of international deals involving the carbon market’s first "rogue trader’. A mystery investor made a £1.8m profit last week by selling invalid carbon permits to unwitting buyers in Europe — which caused a temporary trading freeze at two of the main carbon trading exchanges. Microdyne, a firm registered in Cyprus but based in Edgware, northwest London, confirmed this weekend that it bought and sold the permits to …