An underground greenhouse, often called a walipini, is a sunken outdoor structure designed to keep plants alive year-round by ...

We know the habits of our seasonal friend, cool weather in Texas, and need to prepare in advance for a frosty reception.

The peaks of Fansipan, the highest mountain in Vietnam, Laos, and Cambodia, experienced its first frost of the year's winter ...

Roofs radiate heat efficiently during calm, clear nights, causing the temperature at or near the ground to drop several ...