Yvonne Burke is ringing the doorbell of the office of The Currency. It is late December and she was at a Christmas party the night before but looks none the worse for it. Burke is one of the best chief financial officers in Ireland and is part of a team in one of the most impressive privately-owned companies in the country, Glen Dimplex, which is tackling climate change – the most serious crisis facing the world.  Best known as a maker of consumer appliances, Glen Dimplex is about much more than that as it employs 8,000 people globally in areas…