The fact of the matter is that the future of the world does depend upon each of our actions. The way we eat, work, play, and raise our families is critical for all generations to follow. As it is now, we're failing.
The warming arctic ocean is releasing massive new quantities of methane (a "super" greenhouse gas) as clathrates on the seabed begin to melt.
Sailors transiting the Pacific now say that "The Ocean is Broken", as the abundance of marine life of only 10 years ago has all but disappeared.
Our life support systems are failing. If we love life, and want others to have the same chance, it's time to take responsibility and reshuffle our priorities. Change is no longer optional.