Thanks to David for bringing my attention to this story about the politics of climate change and health. Yesterday Dr. Julie Gerberding, director of the U.S. Centers for Disease Control and Prevention (CDC), testified before the Senate Environment and Public Works Committee. She reportedly told Senators that climate change “is anticipated to have a broad range of impacts on the health of Americans.” But the written testimony she entered into the record contains few details to support that claim. According to the Associated Press, here’s why:

The White House significantly edited testimony prepared for a Senate hearing on the impact of climate change on health, deleting key portions citing diseases that could flourish in a warmer climate, documents obtained by The Associated Press showed Wednesday.

The White House on Wednesday denied that it had “watered down” the congressional testimony that Dr. Julie Gerberding, director of Centers for Disease Control and Prevention, had given the day before to the Senate Environment and Public Works Committee.

But a draft of the testimony submitted for White House review shows that six pages of details about specific disease and other health problems that might flourish if the Earth warms were not delivered at the hearing.

In a Wall Street Journal report, Dr. Gerberding denies that the White House diluted her testimony, calling such allegations “ridiculous.” It’s hard to know what really happened, but at least the media coverage of this controversy highlights the political context of scientific debates.