Heat pumps operate by moving heat from lower temperature areas to higher temperature areas. They typically take advantage of an electrically driven compressor and a closed vapor compression cycle.

As humans continue to pump the atmosphere with carbon, it's crucial for scientists to understand how and where the planet absorbs and naturally emits carbon. A recent study in the journal Nature ...

Pairing solar with reverse-cycle heating can cut winter costs significantly, but timing matters. Daytime heating shines on ...