"Every month people who work in the environmental field meet up at informal sessions known as Green Drinks.

"We have a lively mixture of people from NGOs, academia, government and business. Come along and you'll be made welcome. Just say, "are you green?" and we will look after you and introduce you to whoever is there. It's a great way of catching up with people you know and also for making new contacts. Everyone invites someone else along, so there’s always a different crowd, making Green Drinks an organic, self-organising network.

"These events are very simple and unstructured, but many people have found employment, made friends, developed new ideas, done deals and had moments of serendipity. It's a force for the good and we'd like to help it spread to other cities."