22 Sep 2008 05:09:11
Green roofs urged for capital
Green roofs which encourage biodiversity, reduce energy costs and cut carbon emissions should be installed in as many of the capital's homes as possible, the mayor's environmental advisor has claimed.
Speaking to the World Green Roofs Congress, Boris Johnson's advisor Richard Blakeway, said the environmentally-friendly designs were part of the mayor's vision for London.
He said: "The mayor has very much put green roofs at the centre of his [climate change] adaptation policy and his city greening policy."
Green roofs have been widely adopted in the US, allegedly leading to a total saving of £100 million in energy bills as a result of the insulating effects of the vegetated layer.
The Toronto-based not-for-profit Green Roofs for Healthy Cities has discovered a 30 per cent rise in the number of green roofs across North America.
Meanwhile, scientists in California have also focused on roofs to reverse climate change, though they have suggested that instead of green they should be painted white.