LONDON (Reuters) -Stuart Kirk, the global head of responsible investing at HSBC Asset Management, has resigned from his role, according to a post attributed to him on professional networking site LinkedIn on Thursday. Kirk was suspended by HSBC in May after he said central bank policymakers and other global authorities had exaggerated the financial risks of climate change at an industry conference. The bank, which has committed to playing a major role in leading the global economy in the transition to net zero, declined to comment on Kirk’s post on Thursday. It was unclear whether an internal …