Success for high school bowlers goes far beyond the number of pins they knock down. It involves the equipment it takes to get there.

There has been a wider explosion of the carrom ball too, in the decade and a half since Ajantha Mendis popularised it, and every second squad in every T20 league seems to include someone who bowls it.

Hard, durable thermoset plastics appear everywhere from aircraft coatings to hip replacements. But they’re extremely difficult to recycle, and millions of tonnes end up in landfill, or incinerated ...