Calvin is doing some research on climate change. He finds the following book at his local library Hansen, Emily, PhD. Our World is Warming Up. New York, Bantam Books, 2019 How can he tell that this is a credible source? Select two answers. (1 point) Calvin found the book in the library The book was published in New York. The title refers to climate change. The book has a recent publication date. The author has a doctoral degree he​