we have the story tonight from the white house. >> reporter: speak up, that's the word from interior secretary sally jewell, imploring sciences to confront climate change deniers, especially if president-elect donald trump tries to sideline climate research. >> make your voices heard and make them relevant to the people that you're to. we have a president-elect who likes to win. we cannot win without good science. >> reporter: jewell, the top steward for public lands said the warning was in response to the president-elect himself who has since tempered his skepticism but on a number of occasions called climate change a hoax. >> i think it's a big scam for a lot of people to make a lot of money. in the meantime, china is eating our lunch because they don't partake in all of the rules and regulations that we do. >> reporter: critics have expressed concern that the trump administration will be more protective of the interests of big energy than the environment, noting that his choices to run state, energy and the environmental protection agency