The well-known Nepalese mountain guide Kami Rita Sherpa has climbed Mount Everest for a record 30th time. The 54-year-old reached the summit of the world’s highest mountain at 8,848 metres on Wednesday, a Nepalese official currently staying at the Everest base camp told dpa. Kami Rita Sherpa had accompanied a group as a mountain guide, said the head of his expedition company Seven Summit Treks, Mingma Sherpa. The last time the record holder had climbed the mountain was a little over a week ago. Kami Rita Sherpa first conquered Mount Everest in 1994 and, according to the Guinness Book of Record…