People with signs walk past the Trump International Hotel and Tower during the March for Science on April 22, 2017 in New York.Thousands of people joined a global March for Science on Saturday with Washington the epicenter of a movement to fight back against what many see as an &#039;assault on facts&#039; by populist politicians. / AFP PHOTO / Bryan R. Smith        (Photo credit should read BRYAN R. SMITH/AFP/Getty Images)