Skip to main content

Not plastic soup for tea again!

Image
By
(Not actual size - they're probably bigger.)

Some good news for the planet this week, in the battle against plastic waste.

There’s an enzyme that chomps up PET, the plastic used in bottles. Left to it’s own devices, the plastic takes hundreds of years to break down. The creatively monikered PETase enzyme starts breaking it down in a handful of days.

All good so far, then. Nasty plastics feed some friendly enzymes. Win-win, right? Not quite – it gets a bit creepy when you look into it. Ideonella sakaiensis is a bacterium that consumes PET. Like something out of a sci-fi film, it was discovered quietly scoffing plastic at a bottle recycling plant in Japan.

Our friendly bacterium uses the enzyme as part of the snacking process. Bit weird, but fine. It seems that some plants do have a protective layer made up of something vaguely similar to polyethylene, so it’s evolved from that. Pretty damn quickly, as we’ve only been turning out plastics at scale for half a century.

A rapidly evolving bug that eats plastic. What could make this scarier? Some scientists realising it can be tweaked to “optimize” it? Step forward, Portsmouth University, who reckon they can theoretically adapt it to effectively reverse the manufacturing process, turning plastics back into their constituent building blocks, so they can be used again.

I’m freaked out now. But this is all perfectly safe, and there’s no way hungry mutant bacteria, squirting jets of plastic-melting enzyme, could get out and run amok, is there?

Is there...? Hello?

This post first appeared as the third piece in my column/page in The Mail and the News & Star, on the 20th of April 2018. The paper retained my title!

 Great news story this, and an easy one to write. I wasn't big on good titles this week though, was I?

(CD A-Z: XTC's "Homegrown")
Labels:

Comments

Post a Comment

Popular posts from this blog

Malaysian Grand Prix - Vettel hot, but not bothered

By
Malaysia. It's always hot, and it always rains. Except the 2nd part is no longer true (unless you count the drizzly bit around lap 14). Saturday's qualifying session had highlighted the fact that Red Bull and McLaren seemed well matched on pace, but also that Ferrari were struggling. Whilst Vettel bagged another pole, followed by Hamilton, Webber and Button, Alonso was only 5th, and Massa 7th, with Nick Heidfeld an excellent 6th on the grid between the two red cars. At this point, I would like to break momentarily for a small rant: How many times do I have to say Heidfeld is good? Why wasn't he given a top drive years ago? WHAT IS WRONG WITH YOU PEOPLE?! ARE YOU BLIND!!!?? Ahem. The Hispanias somehow managed to a) turn up b) remember to bring cars c) get both of them on the track d) actually get both of them within 107%. Pretty remarkable really. Oh, and it didn't rain. Race day looked a more likely candidate for a drop of the wet stuff. The start was exciting, with...
5 comments
Read more

A fisful of change at the shops

By
A recent day out reminded me how much the retail experience has altered during my lifetime – and it’s not all good. I could stop typing this, and buy a fridge, in a matter of seconds. The shops are shut and it’s 9pm, but I could still place the order and arrange delivery. I haven’t got to wander round a white-goods retail emporium trying to work out which slightly different version of something that keeps my cider cold is better. It’ll be cheaper, too. But in amongst the convenience, endless choice and bargains, we’ve lost some of the personal, human, touches that used to make a trip to the shops something more than just a daily chore. Last weekend, we visited a local coastal town. Amongst the shops selling over-priced imported home accessories (who doesn’t need another roughly-hewn wooden heart, poorly painted and a bargain at £10?) was one that looked different. It’s window allowed you to see in, rather than being plastered with stick-on graphics and special offers calling ...
2 comments
Read more

Suffering from natural obsolescence

By
You know you’re getting old when it dawns on you that you’re outliving technological breakthroughs. You know the sort of thing – something revolutionary, that heralds a seismic shift it the way the modern world operates. Clever, time-saving, breathtaking and life-changing (and featuring a circuit board). It’s the future, baby! Until it isn’t any more. I got to pondering this when we laughed heartily in the office about someone asking if our camcorder used “tape”. Tape? Get with the times, Daddy-o! If it ain’t digital then for-get-it! I then attempted to explain to an impossibly young colleague that video tape in a camcorder was indeed once a “thing”, requiring the carrying of something the size of a briefcase around on your shoulder, containing batteries normally reserved for a bus, and a start-up time from pressing ‘Record’ so lengthy, couples were already getting divorced by the time it was ready to record them saying “I do”. After explaining what tape was, I realised I’d ...
Post a Comment
Read more