“The messages that need to be conveyed are that we have the technological wherewithal and that all that is standing in our way are cultural and political boundaries that keeps us from working together across the political aisle and across the world.” Geoffrey Holland – Your book, Tipping Point for Planet Earth, concludes that a … Continue reading Have We Reached a Planetary Tipping Point? – A MAHB Dialogue with Paleobiologists Elizabeth Hadly and Anthony Barnosky