"If I were a gambler, I would take even money that England will not exist in the year 2000"

"In fact, giving society cheap, abundant energy at this point would be the moral equivalent of giving an idiot child a…"

"Actually, the problem in the world is that there are too many rich people."

"A series of things have come up since then that have made the problem incredibly grimmer…. The ozone hole… acid rain……"

"The debate regarding which individual factor, among the three key factors producing the environmental crisis, causes …"

"If everyone consumed resources at the US level – which is what the world aspires to – you will need another four or f…"

"As I’ve said many times, ‘perpetual growth is the creed of the cancer cell’."

"To start, make modern contraception and back-up abortion available to all and give women full equal rights, pay and o…"

"The evidence we have is that toxics reduce the intelligence of children, and members of the first heavily influenced …"

"Too many rich people in the world is a major threat to the human future, and cultural and genetic diversity are great…"