It isn't fair, it isn't just, and the blame is not held in your hands, but the responsibility is yours.
To the future generations,
The fact that I have to write this letter deeply saddens me. The state of our natural world is under barrage by the greed and inconsideration of the human race. At our current pace, the state of the earth you must inhabit will be one that no form of life can thrive within. If you are able, please do everything in your power to slow or even halt this damage. I understand it is far easier said than done. It isn’t fair, it isn’t just, and the blame is not held in your hands, but the responsibility is yours. I wish you the best of luck. Godspeed.