Though Barack Obama’s cabinet appointments have received the big headlines, it is worth noting two important sub-cabinet choices. Both are scientists, committed to using rather than abusing science to address issues like climate change, and a welcome departure from the many ideologues and lobbyists that Dick Cheney assembled to advise President Bush on environmental matters.

The first of these choices is Jane Lubchenco, a marine biologist at Oregon State University, to run the National Oceanic and Atmospheric Administration, a division of the Commerce Department responsible for the health of the atmosphere and the oceans.

Ms. Lubchenco is an expert on two grave threats to the oceans, both linked to global warming. One is acidification, which is destroying coral reefs, the other hypoxia, a condition that robs fish of the oxygen they need to survive. She has also been a powerful advocate for stronger federal and international efforts to protect declining fish species.

We are also heartened by Mr. Obama’s choice of John Holdren, a Harvard physicist, as his science adviser. Mr. Holdren has served as chairman of the American Association for the Advancement of Science, as has Ms. Lubchenco. Both have argued strongly and repeatedly for a mandatory limit on greenhouse gases to avoid catastrophic climate change.