Science research journalist and contributing expert on sea level and sea-level rise. Prolific author of numerous articles on the subjects. WUWT lists 445 commentaries and articles.
List of WUWT publications on sea level: https://wattsupwiththat.com/?s=%22Kip%20Hansen%22%20%20Sea%20Level
He has spent much of his adult life at sea, first as an officer on a merchant ship, and later as a USCG-licensed captain in the Caribbean, where he sailed with his wife while doing humanitarian work (mostly Dominican Republic).