Richard Armour, the American poet, once observed that politics has too long been concerned with Right or Left instead of right or wrong.

Beijing air quality.

Rather than fracking, digging up coal, building nuclear plants that produce lethal waste that lasts for millennia, and building pipelines to transmit oil, all sources of, or related to, energy that adds to the earth's already polluted atmosphere and water, we should put that money into renewable resources, such as solar and wind power. Or there are several ways of harnessing the tides and ocean currents that would produce abundant energy and not pollute the planet.

And an engineer friend of mine has come up with a very viable, relatively inexpensive, and idiot simple scheme that would produce vast quantities of electrical energy at virtually no cost after initial installation.

You can lead a person to obvious truths, but you can't make him think.

Don Firth