Lies and liars: Can you catch them?

Lies and liars: Can you catch them?
We asked how to catch a liar. Liars challenge our law, economy and society. If you want to catch a liar, you might as well flip a coin. More »

Menace to monarchs

Menace to monarchs
20 years ago, up to 1 billion monarch butterflies wintered in Mexico’s mountains. This January, a few tens of millions are roosting More »

Brewing biofuel

Brewing biofuel
The struggle to make fuel from wastes from farm, factory and forest continues. What’s keeping cellulosic biofuel out of the market? More »

Cholera strikes Haiti, spreads

Cholera strikes Haiti, spreads
As Haiti copes with thousands of deaths, scientists try to understand how weather affects cholera, and how to battle a feces-borne More »

Typhoon flogs Philippines

Typhoon flogs Philippines
As scientists try to understand the biggest storms in a warming earth, we try to make sense of what’s known, and what’s not. Does More »

Happy Halloween!

Happy Halloween!
Halloween is supposed to be fun, but there’s a disturbing undercurrent of real belief in unreal stuff. Wish The Why Files luck as we More »

Sweet and sour!

Sweet and sour!
Study finds added sugar — equal to 3 cans of soda a day — doubles death rate among female mice, and impairs male reproduction. Even More »