Can you please help me figure out what kind of writing this piece is considered?
A Bill of Rights for Future Generations
We, the people of the future, like the twenty thousand generations who came before us, have the right to breathe air that smells sweet, to drink water that runs pure and free, to swim in waters that teem with life, and to grow our food in rich, living earth.
We have the right to inherit a world unsullied by toxic chemicals, nuclear waste, or genetic pollution. We have the right to walk in untamed nature and to feel the awe that comes when we suddenly lock eyes with a wild beast.
We beseech you, the people of today: do not leave your dirty messes for us to clean up; do not take technological risks, however small, that may backfire catastrophically in times to come. Just as we respectfully ask that you not burden us with your deferred debts and depleted pension plans, we also claim our right to a share of the planet’s ecological wealth. Please don’t use it all up.
We, in turn, promise to do the same. We grant these same rights and privileges to the generations who will live after us; we do so in the sacred hope that the human spirit will live forever.
A curse on any generation who ignores this plea.