Anyone who has ever walked on a frozen lake, gone ice skating or tried curling knows that ice is slippery and that it takes practice to move with any kind of confidence.

But if we kept it and froze down the stem cells of everybody born in the UK, there would be cells that could build kidneys waiting for them, frozen, in case they ever needed them.

Ever frozen ground prevents water from infiltrating to deep layer, which increases the depth of runoff and intensity of transpiration.