What's the difference between warm air and cool air? In fact, what does “temperature” even mean? It's stranger than you think. At a basic level, if you increase the temperature of air, you increase ...

The highly efficient devices are the darlings of the environmental movement. Here’s why. By Hilary Howard Heat pumps, which both warm and cool buildings and are powered by electricity, have been ...

If you're considering using a ground source heat pump to heat your home, you could be wondering what type of ground source heat pump problems you may encounter. Or, perhaps you have one and have a few ...

With global warming becoming an urgent issue, heating our homes efficiently -- and sustainably -- has taken center stage. As winters become more unpredictable (and unexpectedly harsh), finding ...

On an unassuming street in Cardiff, engineering geologist Ashley Patton is lifting the lid on what looks like an ordinary drain cover. But deep inside is one of 234 boreholes, first drilled by the ...