On the Move by Abrahm Lustgarten is a welcome addition to the growing library of what humans face in regard to the world’s changing climate conditions. On the Move is more of a sociological treatise on why people are moving/migrating, and where are their destinations. The three main vectors Lustgarten projects for the impetus of migration are: heat/drought/water crisis, and crop failure; heat and resulting fires; flooding, due to rising sea levels, tides and storms, in particular tropical storms/hurricanes.Lustgarten selects Central America and California as his initial targets. Simply put, Central Americans are abandoning their farms as drought has rendered their fields barren. Hunger is a great motivation for moving, and the author provides a few examples citing individual journeys, as well as the perils of large groups moving toward the US border through Mexico. Mexico is caught between a rock and a hard place with migrants pouring in while the United States is critical about the migrants working their way to the Mexico-US border. In California, increasing heat and dryness fans wildfires that threaten or destroy entire communities. The Eden that once was is going up in smoke. Additionally, the Colorado River serves an enormous population in the southwestern United States, as well as industrial agriculture. The demands upon the water provided by the Colorado River are reaching a tipping point, in particular, if snows in the Rocky Mountains are not significant enough. If it’s decided agriculture wins, what happens to the people.Lustgarten transitions to the southern states, Louisiana in particular. Flooding from sea level rise, storm surges, uninsurable properties disproportionately affecting the poor, and to compound the issue, from Louisiana and all other southern states in this same boat, the wealthy are able to move, whereas the poor cannot afford to do so. Urban areas such as Atlanta are expecting major population increases, but lack the infrastructure to accept the coming flood of people. In both California and southern states bordering the Atlantic and Gulf of Mexico, commercial insurance companies want to bail out. States have taken over in some instances, in order to keep people in place, even if calamities are recurrent. People vote.So where is everybody going to go? Lustgarten strongly hints that a second migration is nearly upon us, where heat, fire, and lack of water will drive people from the western sunbelt, and heat and too much water will drive people back to the “Rust Belt”. Temperatures will remain moderate, and the Great Lakes combined contain about 25% of the world’s fresh water. Duluth, Minnesota in particular may become a Climate Oasis” along with Detroit, Michigan and could easily absorb many migrants from climate extremes, but does an infrastructure exist to accommodate the possible coming hordes. Is the government lax in preparing, or might preparing spawn panic? How will migrants within the United States be received? As heat continues to have effect on water supply and living conditions, will there be a further stratification of society, in particular between the haves and have nots? Will air conditioning be available to all, or be unaffordable to many?Lustgarten paints a picture of the future that can have dire consequences for many if not all people.I recommend reading Lustgarten’s On the Move, as well as Jeff Goodell’s The Heat Will Kill You First, and David Archer’s The Long Thaw. Goodell’s book informs the reader on how heat affects life in general and people in particular, and Archer’s book provides the science of accumulating CO2 in the atmosphere and its ramifications. The three books provide enough insight into the crisis to come if we continue to not take the looming climate crisis seriously.