Also by jamie

So, we've covered the Techno-Dome and some of the highlights in the Greenpeace field. Let's see - what else have we got lined up for Glastonbury?

If you've ever wondered what your carbon footprint looks like, you can get your own carbon calculator installed on your mobile at the Bluetooth Takeaway. The Centre for Alternative Technology will be offering them to download via Bluetooth.

Then you can stroll over to the Guardian Soulmates for some 'carbon' dating. They'll match you a mate with some speed dating and carbon mating. There'll be dancing and cabaret in the evenings between 8pm and 10pm, and if you get serious we'll 'marry' you on Sunday afternoon for a year and a day, just like in the fairy tales.

In the news today are reports of the first zero-carbon home being unveiled in London. Housing minister Yvette Cooper has been touring the site, nodding in a ministerial way at the insulation, solar panels, water recycling and construction methods that went into the first home to meet the top standards of the government's sustainable housing code.

According to the report on this morning's Today programme (you can listen again for the next seven days), the ultra-efficient abode cost 40 per cent more to build than a 'normal' house but as more are built, the economies of scale will bring that down. As the government intends to make all new housing zero-carbon by 2016, that price fall should start in the near future, although Cooper was evasive when quizzed about exactly how many of the 160,000 homes planned in the Thames Gateway region would be zero-carbon. A rolling increase in standards was all she would commit to.

If the testimonies of our two Congolese visitors weren't enough to convince you that there's trouble of the arboreal variety brewing in the Democratic Republic of Congo, try this film for size.

I get a lot of book tokens for Christmas, birthdays and the like - I read a lot so it's an easy option for a hard-to-buy-for kind of guy. But they have a habit of lurking in my wallet for months at a time, as I've got into the habit of buying second hand books. Buy books cheaply from charity shops and return them when I'm done - it's the three Rs (reduce, reuse, recycle) all rolled into one, with a dose of charitable intentions thrown in for good measure.

The only flaw in my cunning plan is that pre-loved books don't just spontaneously appear in branches of Oxfam, they begin life as a tree in a forest somewhere. Large amounts of fresh virgin paper are required to keep the publishing industry running, and if the production of that paper is causing the destruction of large and ancient forests, those book tokens are going to remain where they are indefinitely.