Preface. This is another “Scientists Warnings to Humanity” by many famous scientists, including Paul & Anne Erlich, John Harte, Peter Raven, and Mathis Wackernagel.
Some of the challenges they point to are loss of biodiversity and consequent 6th mass extinction, human population growth which has led to ecological overshoot and overconsumption, climate change and consequent mass migrations. They conclude there will be mass extinction, declining health, and war over resources and many other grim consequences.
They conclude that “…only a realistic appreciation of the colossal challenges facing the international community might allow it to chart a less-ravaged future. While there have been more recent calls for the scientific community in particular to be more vocal about their warnings to humanity, these have been insufficiently foreboding to match the scale of the crisis. Given the existence of a human “optimism bias” that triggers some to underestimate the severity of a crisis and ignore expert warnings, a good communication strategy must ideally undercut this bias without inducing disproportionate feelings of fear and despair. It is therefore incumbent on experts in any discipline that deals with the future of the biosphere and human well-being to eschew reticence, avoid sugar-coating the overwhelming challenges ahead and “tell it like it is.” Anything else is misleading at best, or negligent and potentially lethal for the human enterprise at worst.”
