"The science behind it is so basic you can see it in daily life," one researcher said. "Warm water drives more evaporation — the bathroom gets much steamier after a hot bath than a cold one." ...

Dew point temperature, a number that becomes very important when the summer months roll around. Why is that? Well, the dew point gives you an idea of how much water vapor is in the air. In other ...

A Washington Post investigation reveals why so few people evacuated in the state hit hardest by last year’s deadliest disaster.