Back in the 60’s, a group of visionaries collaborated in a brief but trascendental publication, many of the articles deal with climate change, overpupulation and other issues that today we deal with urgency. Here is the link. www.wholeearth.com
On other aspects, say biological ones, one can find amusing natural mysteries on radiolarian. i.e:
http://www.radiolaria-project.de/indexFlash.html 
More to follow…