Last year, rival PG Tips launched a range of green teas alongside fruit and herbal teas.
He dreams of a chain of organic supermarkets, selling a range of green-minded products at competitive prices.
Norwich Union already offers a range of green stocks and shares Isas, including six sustainable future funds and one UK ethical fund.
Whatever you think of the science of carbon offsetting (many, myself included, find it dubious, or even counterproductive) Climate Care was a small, well-meaning business set up to channel finance from offsets to a range of green energy schemes.
What may be less obvious, though, are the many ways in which professional teams and major sporting events are discovering sustainability, incorporating a range of green business measures into their operations.
Such measures will lay the foundations for a range of "green" financial products such as mortgages and loans designed to help people invest in such things as loft installations and solar panels.
Rare earths — both the "light" and "heavy" varieties — are vital to a range of green-energy technologies, including compact fluorescent light bulbs, hybrid-electric vehicles and wind-power turbines.
Ethically minded individuals looking for potential returns of as much as 9.9% a year, and who are prepared to take some risks with their money, are being offered the chance to invest in a range of "green" schemes – one of which has been praised by David Cameron, no less.
As Ms Granholm admits, whether the battery cluster turns out to be a good deal for taxpayers may depend on America adopting tough policies towards carbon emissions.There has been much talk about putting the unemployed to work to improve the energy efficiency of homes and commercial buildings, creating a range of "green jobs".
