Marean's team found sandy layers just above the ash traces, which Ambrose says are indeed a sign
of dramatic environmental change and a decrease in human occupation.
This effect on some genes may be a result of the buffering effect of living in a complex, interdependent society, where the «collective genome» is less vulnerable to
dramatic environmental changes or other external threats, Robinson said.
A heartbreaking expose» which leaves no doubt that
dramatic environmental change is unfolding at every latitude, whether they be the consequences of human overconsumption of fossil fuels or merely the hand of God.
Janet Culbertson's art is inspired by and reveals
the dramatic environmental changes brought about by human interaction upon the earth.