Read here. Because the hard sciences did not stand up and fight the cultural left and their politicization of climate (global warming) science, the public no longer believes what any of the sciences are shoveling. Scientists of all stripes are now viewed as being beholden to either a political and/or funding ($$$) agenda, versus following the traditional scientific truth and empirical evidence objectives. Climate science has soiled the bed that all scientists sleep in, and the hard science scientists just let it happen.
"Surely there must have been serious men and women in the hard sciences who at some point worried that their colleagues in the global warming movement were putting at risk the credibility of everyone in science. The nature of that risk has been twofold: First, that the claims of the climate scientists might buckle beneath the weight of their breathtaking complexity. Second, that the crudeness of modern politics, once in motion, would trample the traditions and culture of science to achieve its own policy goals. With the scandal at the East Anglia Climate Research Unit, both have happened at once."