On advice from the u3a Learning Team I have moved back issues of the Second Nature newsletter from the website to an external archive, along with slides from some talks. You can't reach this material from the website: subscribers can find a link in the newsletter,

One result of the move is that links from within a newsletter to earlier issues will break, because they are trying to access the website Media Library. I will try and fix these links, but this is a background task and will take a while.

Some content originated by the Climate Matters IGO is also being moved.