This money comes on top of and, more troubling, is all "related to" and is sometimes even expressly for his taxpayer-funded employment, which commenced when Hansen stepped up his "global warming" activism from his NASA perch.
On January 19, ATI filed a Freedom of Information Act (FOIA) request (PDF) with NASA’s Goddard Institute for Space Studies (GISS), which Hansen directs, seeking records detailing his and NASA's compliance with applicable federal ethics and financial disclosure laws and regulations and with NASA Rules of Behavior. Thus far the agency has denied ATI’s request for Hansen's Form 17-60 "Application for permission for outside employment and other activity", and internal discussions about same.
NASA argues rather implausibly that release would constitute a "clearly unwarranted violation of Hansen's privacy rights". More implausibly, NASA claims that ATI's several pages of explanation failed to establish that the one-page, required applications -- if they exist, which we have reason to question -- would “contribute to the public's understanding of the activities of the Government, or how it would shed light on NASA's performance of its statutory duties.”