Over the past two months, the Trump administration has taken steps to eliminate regulations addressing climate change, pull back funding for climate programs and cancel methods used to evaluate how climate change is affecting American society and its economy.

Now it is directly undermining the science and research of climate change itself, in ways that some of the nation’s most distinguished scientists say will have dangerous consequences.

Proposed cuts to the National Oceanic and Atmospheric Administration, the agency whose weather and climate research touches almost every facet of American life, are targeting a 57-year-old partnership between Princeton University and the U.S. government that produces what many consider the world’s most advanced climate modeling and forecasting systems.