To set an example to the rest of the world
"Here in the UK we bend over and take the green issues up our backsides. We do all this to set an example to the rest of the world...."
Are you kidding? Where exactly is the UK setting an example in green issues? By building shoddy small homes after outdated construction methods from some 200 years ago? It's really amazing that in this day and age things like double glazing and wall insulation are still something special in Britain when these things are standard in most mainland European homes for half a century and not worth mentioning. But then most homes in mainland Europe also have been equipped with mixer tabs for a similar time already.
Or are you thinking of leading by example through successfully killing off most of Britain's manufacturing industry in favor of the 'services' and financial industry which means most products sold in the UK are cheap crap from China which ultimately ends up in a landfill here or in some 3rd world country?
But maybe Britain is setting an example by NOT heavily investing in green technology and clinging to nuclear power instead, ignoring the risks and the true costs (and probably still believing the myth that electricity in France is cheaper than anywhere when in reality prices in countries like Germany which heavily invest in green technology are actually far lower; in fact, France has often fallen back on Germany's electricity 'exports' to compensate for their insufficient infrastructure).
If Britain is setting an example then that it is not only backwards in house building but also in green technology, way behind countries like Sweden, Norway or Germany, and even the USA.