A new White House-sponsored report concludes that climate change already is having an impact throughout the United States, with infrastructure feeling some of the effects, and says urgent action is needed to ensure that catastrophic results don't materialize.
The third U.S. National Climate Assessment (NCA), which the White House released on May 6, says that rising sea levels, heavy downpours and extreme heat are damaging infrastructure of all types—including roads, rail lines and airport runways. It adds that the costs are expected to climb significantly in coming decades.