Letter: GEORGE Kerevan’s warning about the downside of battery electric cars is telling indeed. The dependence on the democratic Republic of Congo as the main source of the cobalt necessary to recharge lithium batteries is surely environmentally and morally unsustainable in the long run. There is a viable alternative, however, namely green hydrogen, which can be made from two ingredients that Scotland has in abundance: water and renewal electricity generated either from wind turbines or increasingly from tidal stream turbines. Scotland’s potential for tidal steam energy in particular is enormous and ultimately much greater than our current electricity requirement.
The National 16th July 2019 read more »