“Civilization will end within 15 or 30 years unless immediate action is taken against problems facing mankind.”
• George Wald, Harvard Biologist

“We are in an environmental crisis which threatens the survival of this nation, and of the world as a suitable place of human habitation.”
• Barry Commoner, Washington University biologist

“Man must stop pollution and conserve his resources, not merely to enhance existence but to save the race from intolerable deterioration and possible extinction.”
• New York Times editorial, the day after the first Earth Day

“Population will inevitably and completely outstrip whatever small increases in food supplies we make. The death rate will increase until at least 100-200 million people per year will be starving to death during the next ten years.”
• Paul Ehrlich, Stanford University biologist

“By…[1975] some experts feel that food shortages will have escalated the present level of world hunger and starvation into famines of unbelievable proportions. Other experts, more optimistic, think the ultimate food-population collision will not occur until the decade of the 1980s.”
• Paul Ehrlich, Stanford University biologist

“It is already too late to avoid mass starvation.”
• Denis Hayes, chief organizer for Earth Day

“Demographers agree almost unanimously on the following grim timetable: by 1975 widespread famines will begin in India; these will spread by 1990 to include all of India, Pakistan, China and the Near East, Africa. By the year 2000, or conceivably sooner, South and Central America will exist under famine conditions….By the year 2000, thirty years from now, the entire world, with the exception of Western Europe, North America, and Australia, will be in famine.”
• Peter Gunter, professor, North Texas State University

“Scientists have solid experimental and theoretical evidence to support…the following predictions: In a decade, urban dwellers will have to wear gas masks to survive air pollution… by 1985 air pollution will have reduced the amount of sunlight reaching earth by one half….”
• Life Magazine, January 1970