Rachel Sobel ’15 Selected to Attend U.N. Climate Change Talks in Peru - Sobel is one of eight students sponsored by the American Chemical Society. She was also chosen to attend the 2013 Climate Change Talks in Poland.
Writing for Clarity
his or her
Although grammatically correct, avoid the use of "his or her": "Everyone should take his or her seat." Instead rewrite: "The students should take their seats."
SOURCE: Hamilton College Editorial Style Guide