A former NASA climate scientist will go toe-to-toe with business tycoon Warren Buffett this weekend over a shareholder’s climate change resolution slated for a vote at Berkshire Hathaway’s annual meeting in Omaha.

Buffett, who is chairman of the multi-billion dollar holding company, advised shareholders in February not to vote for the resolution because it makes little business sense. The resolution would direct Berkshire to conduct an assessment of how climate change is affecting the company’s sizable insurance business.