But I thought I ought, at least, to list a few of the stocks you could buy to help improve the world. Though once again, you might think the opposite. (Wouldnt it be a foul world, if we all thought alike?)

Ive always believed that buying into companies, which researched drugs was a good idea. Not the illegal kind, you understand. But if someone can find a cure for Parkinsons disease with my investing money, then I would be mightily pleased.

There are loads of them to be researched on Sharecrazy.com. But I have to warn you that this is a risky punt. Find the cure and youre quids in. If it never materialises, or equally bad, cant secure a licence then your cash goes straight down the drain.

Then you could invest in one of the growing number of companies, which recycles paper, wood, glass and other stuff. Or you might try a firm, which is experimenting on ways of getting more out of crops, in a desert, say, or swampland.

Another warning is fair here. Some green trusts companies, which only invest in ethical shares have done rather badly in the recession. It seems people stop thinking about higher things when their job or purse is threatened.

Still the recession wont last for ever, and green shares – like all the others, I expect, will rise eventually.

Also worth thinking about, while in ethical vein, is that some oil companies and even miners are starting to think a lot harder about saving the planet as far as they can with their polluting industries. For example, Shell (LSE: RDSB.L - news) is doing a bit of work on bio-fuels, you know, petrol from plants and that sort of thing.

Have a look at a few websites for oil and mining companies and see if you see what you like on the Green front. Might make you feel a bit more comfortable with yourself. Rock on.