Coral Under Siege

Pollution, overfishing and global warming have gravely endangered reefs. Help is finally on the way, and this time the U.S. is taking the lead

Why Carbon is Not a Bad Word

Climate change has turned carbon into an enemy of the environment, but a new book puts the infamous element in its proper (and less villainous) context

• Learning To Love Carbon Again

Fit Alzheimer's Patients Better Off

Patients in the early stages of Alzheimer's disease who performed better on a treadmill test had less atrophy in the areas of the brain that control memory

Study: 'Pre-dementia' Rising in Men

New research shows that a milder type of mental decline that often precedes Alzheimer's disease is much more common than thought

The Myth of the Math Gender Gap

Despite the enduring stereotype that girls are less proficient with numbers than boys, a new study suggests there is no longer any such difference

Dear (Food) Diary

A new study shows that dieters can double their weight loss by jotting down what foods they eat

It just seemed like a perfect way to stay current with the state of television today.

• KEN EHRLICH,
• executive producer of the Sept. 21 Emmy broadcast, on choosing the hosts of five reality-TV shows to host the awards program, including Heidi Klum