Telegraph: Amid the hysteria of Amercia’s worst environmental disaster on record, Siemens chief executive Peter Löscher will likely be looking at the longer game. Löscher is far too guarded to say it, but green technology companies will be waiting with keen expectation to see the results of the Deepwater Horizon spill. As the backlash against big oil builds, there will be winners. Siemens is already in Barack Obama’s good books. The US President visited the German company’s new wind …