For the second time this year, Contact Magazine Online focuses on green issues – climate change and the environment are still at the forefront of our attention. This is humanity’s biggest challenge – keeping the rise in global average temperature to no more than 1.5C. The responsibility falling on business to play its part – and therefore on individual business managers – is great. Following up from COP26 at Glasgow, we asked our members to write about how they are changing their business models to adapt to the demands of a zero-carbon future. This issue is about much more than firms blowing their own trumpet; it shows the breadth and depth of the changes that are facing business in the short, medium and long term.