Michigan's heat wave this week will feel even warmer because of high humidity. Here's how the heat index works.

The heat index shows how humidity makes hot days feel hotter, and why direct sun can push dangerous conditions even higher.

'Feels like' temperatures are just another name for the heat index. Here's how to understand the calculations as temperatures and humidity soar.

Don't let summertime temperatures compromise your aircraft's performance.

Nanotechnology has quietly progressed through three distinct generations, and the third is now reshaping how deep-tech R&D ...

Discover the alarming impact of heat waves on wildfire risk in the Western United States. A new study reveals the extent of ...

Conditions across the Inland Northwest continue to be drier than normal. For the first half of June, only 0.15 inches of rain ...

A new study found that 42% all the area burned by Western fires had occurred during or right after a heat wave.

A week inside a grueling Muay Thai training program in Phuket.

You want bigger, healthier harvests, not a crowded bed full of stressed plants. Planting everywhere there’s a spare inch ...

More energy-efficient air-conditioning units could, together, save Indian households ₹69bn ($724m) a year, according ...

Shipping through the Strait of Hormuz faces complex challenges as vessels resume operations after prolonged anchorage, ...