Name: Something New Under the Sun: An Environmental History of the Twentieth-Century World (The Global Century Series)
ISBN: 9780393321838

J. R. McNeill

Assesses the impact of humanity on twentieth century Earth, exploring the indirect effects of politics, international relations, technological change, key scientists, and environmental disasters and policies.

Something New Under the Sun: An Environmental History of the Twentieth-Century World (The Global Century Series)

Michael Springer

The one sentence review I just said to Joy was, "We tried to do good, but we had no idea what the fuck we were doing." She said that pretty much sums up the personal training field as well. 

Maybe that is an appropriate one-sentence review for humanity as a whole.