A house on the New England island of Nantucket that was valued at $1.9 million but recently sold for $200,000 has brought U.S. coastal erosion concerns into focus.
Why it matters: Climate risks bring the "potential for widespread property value declines in coastal areas" and "constitutes a major economic threat," per Alice Hill, an expert on energy and the environment at the nonprofit Council on Foreign Relations.
A group of astronomers want to change the definition of a planet.
Why it matters: Their new proposed definition wouldn't bring Pluto back into the planetary fold, but it could reclassify thousands of celestial bodies across the universe.
The big picture: Urban heat islands (UHI) are boosting temperatures within 65 major U.S. cities that are home to 50 million people, or 15% of the total U.S. population, according to Climate Central's analysis.