By doing thinks like arranging free home energy audits (British Gas) or changing the washing instructions on new clothes to 30 degrees (M&S), the eight founding partners of the organisation claim to have saved 500,000 tonnes of C02 - and the public £100m. Individuals can, apparently, save themselves £1,152 a year by adopting a series of green measures.

In this upbeat video, a sombre Tony Blair describes climate change as the biggest long-term challenge facing the world, Gordon Brown ventures that Government can play a role (nice one, Gordon!), and Claudia Schiffer and Annie Lennox say the words: "'Together" or "We can".

None of them were sat around the table at Lambeth Palace this morning to discuss what the companies had done - or were going to do.

Like a party-pooper, I asked why the business leaders couldn't do something bolder. Why couldn't more follow B&Q's principled decision to phase out lunatic patio heaters? Why, for instance, couldn't Tesco put lids on its freezers, or British Gas run TV ad for its green tariff, or Royal SunAlliance refuse to insure the worst 4x4s, or the National Trust give £5 off admission to cyclists?

Looking at the latest evidence, Martin Parry, of the UN Intergovernment Panel on Climate Change, remarked: "Despite all the talk, the situation is getting worse." Sure, an international agreement is needed to stop the warming, but chief executives could do better than throwing a green veil over the shopfront.

At least National Express, Coca-Cola and Barclays were there, I suppose. The missing included Sainsbury's, John Lewis, TopShop, HSBC, Shell, and the overwhelming majority of British business.