If you turn on the air conditioning unit to stay cool in the summer, or if you turn on the heat to stay warm in the winter, you have an HVAC system, or Heating, Ventilation and Air Conditioning. This ...

Arnett exposes the complexities of marriage and comedy in Is This Thing On? Maureen Corrigan reviews The Rest of Our Lives, by Ben Markovits. Filmmaker Craig Brewer channels his inner Neil Diamond.

Jan. 5, 2026 CO2 can stimulate plant growth, but only when enough nitrogen is available—and that key ingredient has been seriously miscalculated. A new study finds that natural nitrogen fixation has ...