By Lindsay Dunsmuir (Reuters) – Central bankers around the world are scrambling to adjust to stubbornly high inflation at risk of getting further out of hand and forcing stronger policy actions that increase the risk of a global recession. Already investors in the United States are debating whether the Federal Reserve will now need to deliver a super-sized 100 basis point interest rate hike, the largest since the 1980s, at its upcoming meeting on July 26-27 after a dire inflation reading on Wednesday showed price pressures broadening and accelerating to a more than 40-year high with little rel…