What Harvard say here is so true. It is so obvious.

Before the Industrial Revolution there were hand tools and most components were made in wood. Industrialisation was initially benefitting agriculture and textiles but not so much transport and steam/power generation where metal parts would increase operating specifications and the life of the vehicles and machines used in transport and power. As different machine tools were invented and developed interchangeability of parts, a huge benefit, became possible.

During the second half of the 19th century machine tools became the largest industrial sector in the USA. The UK machine tool industry was also developing fast producing machines whose names would be amongst the most important world wide throughout most of the 20th century – Herbert, Wickman, Webster & Bennett all from Coventry, together with BSA in Birmingham. Smaller companies in these two great cities developed many specialized machine tools

The machine tool industry in the UK and the USA were major contributors to our success in the World Wars. Since 1981 our ability to manufacture weapons and armoured vehicles has reduced with the decades of de-industrialisation policy. The UK manufacturing capacity that remains is almost full of machine tools built overseas, many in countries that we have been to war with or had a poor relationship with. If we fall out with them where do we get spare parts or replacement machine tools? Cars, airplanes, tanks, ships, railways, power stations – made them all but now we spend hundreds of billions for people to make them for us. Senseless

The effects of these deindustrializing policies on Greenhouse gas effect? Not what most people think! They have their heads in the sand.

Want to read more or argue with me – I invite you to this link age-fit.com/govt/idiocy