| Date | Title | Author |
|---|---|---|
| July 5 2006 | The value among the waste | Ellen Kelleher, Financial Times |
| May 6 2006 | London blazes the green trail | Sylvia Pfeifer, The Telegraph |
| February 21 2006 | A good time to be a green entrepreneur | Fiona Harvey, The Financial Times |
| February 14 2006 | High energy prices and government regulation fuel valuation gains | Fiona Harvey, The Financial Times |
