Keeping your home’s humidity in the 40% to 60% range could make it harder for flu viruses to spread.

Relative humidity is a simple concept as weather phenomena go – but it has significant, far-reaching consequences for how we must take care of ourselves on a hot or wet day. Humidity is the amount of ...

It’s a T-shirt kind of day in Washington, DC: 85 degrees with 63 percent humidity. We all know those numbers mean hot, but what exactly does that humidity percentage tell us? And why should we care?

Water vapour is fundamental to life on Earth. As well as being a greenhouse gas, water vapour is the basis for clouds and rain. Therefore, it sustains plants, forests and our ability to grow food. A ...