(from 2017)
I went for a walk today.
That is not quite as strange as it may seem. I have
been known to do considerable exercise, albeit when a little shorter in the
tooth. (Is that an expression they use in the US?) And my father was a fitness
freak who walked thirteen miles for charity at the age of 95. I must hasten to
add that his demise the same year was totally unrelated.
At the back of where we live are a series of lakes
and cascades, built on the site of three former coal mines. A little over
twenty years ago with masses of money from Europe, the eyesores were all taken
away, around a hundred thousand native trees were planted and the river was
raised and lakes created. Previously it had been covered by spoil tips. Now it
is a Mecca for tourists. The lakes are used by canoeing clubs, model boat
clubs, fishermen, and a variety of wild life. Perhaps the only blot on the
landscape is the need to regularly rake out a foreign weed. Some incontinent Canadian
goose apparently deposited the seeds a few years back and we are stuck with it.
At one end of this special park is the largest natural filtration system in
Europe - reed beds that clean the water coming up from old mine workings before
it is put back in the river, along with an international climbing center, and then
at the other end near us a roaring cascade through a series of descending small
pools.
The walk was to show us what had been done in the
last year. The cascade is designed in steps so that salmon and other fish can
scale it and reach the lakes. I would have thought they would need to be
particularly energetic fish, but apparently they can jump in these stages without
trouble. A sea trout has been found in the lakes, which must have made an
adventurous journey, twenty five miles inland and up some steep gradients. And
they have recently created a walkway under the main road at the bottom where
the cascade thunders through to the main river, for the benefit of otters whose
encounters with traffic were somewhat prejudicial.
But now they have put in a hydro-electric plant, which
is hidden away. And that is what we were taken to see. Water is taken from the
river through a very fine mesh, designed to prevent even very small bits of
debris going through. It is taken from the top of the cascade, and as it
responds to gravity, is compressed into smaller pipes and powers a generator
before going back into the river at the bottom of the cascade. Although it cost
about half a million GBP to build, the electricity sold back to the national
electric grid raises one hundred thousand GBP per year. On that reckoning the
whole thing will be paid for in five years, and then it is all profit. And the
profits don’t go to the local council - who might waste it on “expenses” at the
other end of the borough, they all go back to the park for maintenance, extra
wardens and the like.
I have to say I was impressed. Both with the design
of something that is completely hidden from view, and the plans for the wild
life, as the park and lakes get increasingly more colonized.
Another local initiative for generating electricity
is food waste. We sometimes grumble when we have to put out four different bins
for recycling each week, plus an extra one for non-recycled rubbish. Some local
authorities will give you just one bin to fill and then hire people to sort it
out. But with the massive unemployment in our area since the industry went down
the tubes, the local council is always strapped for cash. So it is Do-It-Yourself
time. But the food caddy goes out each week, with biodegradable bags full of
dead teabags, peelings, and the results of me putting too much on my plate to
begin with. It all gets taken to a farm nearby, where I know the people quite
well.
They have what is called an anaerobic digester -
which sounds painful - but this produces methane. Rather than being a pollutant
this is then used to generate electricity. When they first started they immediately
produced enough electricity to run the total needs of several thousand homes,
and that figure has obviously risen. The farm makes good money, dead food doesn’t
go into landfill and since (hey-ho for all these regulations) it can’t be
recycled as animal feed, everyone gains. Now if only they could harness the
methane given off by flatulent cattle someone would make a fortune.
I guess it wouldn’t work if we all lived in cities,
but these different initiatives do contribute. And you know, when I tap my
waistline and decide not to eat that last potato, and scrape the remains of my
dinner into the caddy, I feel rather virtuous. You see, I’m helping to save the
planet.
Well, sort of...
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