“Thus human beings are now carrying out a large scale geophysical experiment of a kind that could not have happened in the past nor be reproduced in the future. Within a few centuries we are returning to the atmosphere and… — Bill McKibben Copy Share Image
Thus, human beings are now carrying out a large scale geophysical experiment of the kind that could not have happened in the past...Within a few centuries we are returning to the atmosphere and oceans the concentrated organic carbon stored in… — Roger Revelle Copy Share Image
