Lamont-Doherty Earth Observatory | 7,323 followers on LinkedIn. Scientists providing a rational basis for the difficult choices facing humanity.  | The Observatory is a dynamic community of more than 500 scientists, students and staff whose expertise advances the field of Earth science and contributes to our ability to respond to unprecedented environmental change. From global climate change to earthquakes, volcanoes, nonrenewable resources, environmental hazards and beyond, Observatory scientists provide a rational basis for the difficult choices facing humankind in the planet’s stewardship.