World Scientists’ Warning to Humanity: A Second Notice
Twenty-five years ago, the Union of Concerned
Scientists and more than 1700 independent scientists, including the
majority of living Nobel laureates in the sciences, penned the 1992
“World Scientists’ Warning to Humanity” (see supplemental file S1).
These concerned professionals called on humankind to curtail
environmental destruction and cautioned that “a great change in our
stewardship of the Earth and the life on it is required, if vast human
misery is to be avoided.” In their manifesto, they showed that humans
were on a collision course with the natural world. They expressed
concern about current, impending, or potential damage on planet Earth
involving ozone depletion, freshwater availability, marine life
depletion, ocean dead zones, forest loss, biodiversity destruction,
climate change, and continued human population growth. They proclaimed
that fundamental changes were urgently needed to avoid the consequences
our present course would bring.