If we were to divide our atmosphere today into 1 million parts, 421 of them would consist of carbon dioxide. And while 421 parts per million (ppm) may not seem like a lot, it's the most we've seen in at least 3 million years. In addition, all this carbon dioxide warms the planet.

These levels have accelerated during your lifetime, but don't take it personally: this fact applies to everyone alive today. But do you know what else can happen in your life? We can take the most important steps to reduce carbon emissions and give our planet a future that will be the least affected.

It will take collective action. It will require new technologies. And it will require very old technology – like nature.