People do some really amazing things with Wiki's. In general they are built by groups of people who are doing it because they are passionate about it, not because it is ever going to make them rich. That always seems to make for the best work products...
I wanted to take a few moments to bring your attention to this video. It is made with piece of software that can be found at gource.io. What the software does is log changes to the file tree of the foswiki project over the course of six years. Each firework is a different developer and each spark coming off of it is one of the saves they made with a date attached. It is really worth taking the five or six minutes to set this on full screen, turn up the volume and watch this video just for the artistic beauty of it.
This is how i visualize the problem of climate change. This tree could just as easily be sources of greenhouse gas emissions, heat, biodiversity loss and other global ecological issues. each little bubble of fireworks is a problem that needs to be solved, and as we document and organize them that set grows and changes. different colors code for types of problems. these are your nodes.
Now, picture a second set of fireworks layed overtop of this one. That is all of the technology we need to remediate all of the nodes from the first fractal crystalization. Visualize the flashes of data between the two sets of fireworks as problems inspire fresh solutions and solutions shrink the problems over time. over time the intensity of the back and for intensifies in some places. We pluck the low hanging fruit, solve the easy problems and those problems go dark. Slowly, the second tree overtakes the first. A neuronal storm chews through all of the doom and gloom to deliver a how to manual of technological problem solving skills.
wouldn't you like to own a little piece of that?