If we could educate everybody to understand a very simple mathematical concept, we might be able to save the world. Seriously, whatever your global concern is, it would likely be made better if everybody understood this formula.
The global understanding of this mathematical concept would fix most problems related to sustainability, including climate change. It would address concerns about the loss of liberty and excessive regulations. It'd fix just about everything.
Here's a great video we can use to help educate people on this formula and the power of exponential growth.
For people who want to engage this concept more deeply, I'll post a second video. It's a longer version of the same lecture (the original version). The longer version was given by Albert A. Bartlett, Professor Emeritus in Nuclear Physics at University of Colorado at Boulder.