There is an international treaty framework for this. It's the Nuclear Non-Proliferation Treaty (NPT). Most countries in the world are members of the treaty.

The court was unable to rule on all circumstances in which nuclear weapons might be used, and it said in view of the problems, the risks posed by nuclear weapons, and in view of the lack of certainty of the law in all circumstances, the best course is fulfilling the obligation of good faith negotiations of nuclear disarmament contained in the nuclear non-proliferation treaty.

[Theodore Roosevelt] was a naturalist on the broadest grounds, uniting much technical knowledge with knowledge of the daily lives and habits of all forms of wild life. He probably knew tenfold more natural history than all the presidents who had preceded him, and, I think one is safe in saying, more human history also.

Mounting toward the upland again, I pause reverently, as the hush and stillness of twilight come upon the woods. It is the sweetest, ripest hour of the day. And as the hermit's evening hymn goes up from the deep solitude below me, I experience that serene exaltation of sentiment of which music, literature, and religion are but the faint types and symbols.

Now is the time of the illuminated woods ... when every leaf glows like a tiny lamp.

There is a condition or circumstance that has a greater bearing upon the happiness of life than any other. What is it? Something to do; some congenial work. Take away the occupation of all people and what a wretched world it would be.

Nature exists for man no more than she does for monkeys, and is as regardless of his life or pleasure or success as she is of the fleas. Her waves will drown him, her fire burn him, and her earth devour him, her storms and lightning smite him, as if he were only a dog.