The American climate migration has already begun | Jake Bittle

Over the past decade, the US has experienced a succession of monumental climate disasters. Hurricanes have obliterated parts of the Gulf Coast, dumping more than 50in of rain in some places. Wildfires have denuded the California wilderness and destroyed thousands of homes. A once-in-a-millennium drought has dried up rivers and forced farmers to stop planting crops. Many of these disasters have no precedent in living memory, and they have dominated the headlines as Americans process the power of a changing climate.

But the disasters themselves are only half the story. The real story of climate change begins only once the skies clear and the fire burns out, and it has received far less attention in the mainstream media.

In the aftermath of climate disasters, as victims try to cope with the destruction of their homes and communities, they start to move around in search of safe and affordable shelter. Many of them have no choice but to move in with family members or friends, while others find themselves forced to seek out cheaper apartments in other cities. Some rebuild their homes only to sell them and move to places they deem less vulnerable, while others move away only to return and lose their homes again in another storm or fire.

The private insurance industry and the private housing market also push people out of their homes. In California, for instance, the large insurers have stopped offering fire insurance to people who live in the riskiest areas, or have raised costs to unaffordable levels, forcing homeowners to reconsider whether they can afford to stay where they are. Many of the places that are most vulnerable to disasters are also experiencing a severe housing shortage, which makes recovery almost impossible.

The federal government has the resources to help address this chaos. Lawmakers could ramp up programs that protect against floods and fires. They could give people money to relocate from vulnerable homes or to find new jobs if climate change makes their old jobs impossible or dangerous. Meanwhile, the White House could take a leading role in planning for future migration, incentivizing growth in places that are less vulnerable and easing the transition away from the riskiest places.

But doing any of these things would first require government officials to acknowledge the scale of climate displacement that has happened already, and shed light on a crisis that has for too long gone ignored.