Tree huggers!
In the beginning of the essay "Lifeboat Ethics," environmentalists compare Earth to a spaceship - stressing the finite resources and limited carrying capacity of the planet for its inhabitants. Just like astronauts on a spaceship must carefully manage resources, humans on Earth need to practice sustainable living to ensure survival for current and future generations.
Environmentalists say they were blindsided by the proposal to modify the Everglades Forever Act, and shocked by the speed with which it moved through the Legislature.