<h1>Former senior UN climate official joins materials-tech company advisory board; monitor post-employment restrictions, conflicts, disclosures, IP, and lobbying limits</h1> A global materials-technology company appointed a former senior UN climate official to its advisory board to advise on sustainable innovation. The appointee's extensive public-sector experience includes senior roles in climate negotiations and institutional reform, and current participation in a GHG protocol steering committee. Legal issues to monitor include compliance with post-employment restrictions, ethics and conflict-of-interest rules governing use of nonpublic government information or undue influence, disclosure obligations, and corporate governance duties applicable to advisory roles. The appointment is non-executive; parties should document scope, confidentiality, IP ownership, and any restrictions on lobbying or representation.