You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
University_of_Chicago

Context:
In science, alumni include astronomers Carl Sagan, a prominent contributor to the scientific research of extraterrestrial life, and Edwin Hubble, known for "Hubble's Law", NASA astronaut John M. Grunsfeld, geneticist James Watson, best known as one of the co-discoverers of the structure of DNA, experimental physicist Luis Alvarez, popular environmentalist David Suzuki, balloonist Jeannette Piccard, biologists Ernest Everett Just and Lynn Margulis, computer scientist Richard Hamming, the creator of the Hamming Code, lithium-ion battery developer John B. Goodenough, mathematician and Fields Medal recipient Paul Joseph Cohen, and geochemist Clair Cameron Patterson, who developed the uranium-lead dating method into lead-lead dating. Nuclear physicist and researcher Stanton Friedman, who worked on some early projects involving nuclear-powered spacecraft propulsion systems, is also a graduate (M.Sc).

Question:
What popular environmentalist is also a university alumni member?

David Suzuki,