I normally cycle a leisurely 6 miles daily, to and from work, so this is going to hurt.

Some sort of training may even be required, although I draw the line at padded Lycra.

I'm never EVER going to run a marathon, so this is very likely the only time I'll ask you to sponsor me. It's to support Friends of the Earth in helping make the world a greener, cleaner place.

Donating through JustGiving is simple, fast and totally secure. Your details are safe – they’ll never sell them on or send unwanted emails. Once you donate, your money goes directly to the charity and Gift Aid is reclaimed on every eligible donation by a UK taxpayer.

And you get to write sarcastic public messages on the wall as you donate.

Thank you!

Mel