Most Columbia employee sick leave policies can be found here.
No supervisor can discourage an employee from taking sick leave or require them to work additional hours to make up missed work from being sick. Such complaints should be immediately brought to the attention of Lamont Human Resources or, if the situation continues, to the attention of the Lamont Director.
DEES students should be discussing their sick days with their graduate student liaison. Graduate student sick leave is determined by Columbia University, not Lamont-Doherty Earth Observatory. As of March 2021, graduate students were in union negotiations discussing this policy.