Ice-skating, fishing and driving heavy trucks on frozen lakes could soon be activities of the past due to climate change, scientists have found. There are more than 58.5 million lakes on Earth covered by ice, either on a seasonal or year-round basis. Viewers of ‘Frozen Planet II’ have been treated to some of these spellbinding vistas in the UK recently. But while we’re well aware that the poles are melting at an alarming rate – with the Arctic warming three times faster than the rest of the planet – less is known about the toll global heating is taking on the world’s frozen lakes. People livin…