How sewage can be used to heat and cool buildings

Ukrainian and Polish presidents show unity against Russia, address historical tensions

Justice Department faces deadline to release files on Epstein sex trafficking investigation

The latest in sports

Betting interest wanes as 1st round of College Football Playoff lacks excitement

Rams WR Puka Nacua apologizes for antisemitic gesture, adds more controversy after career game

Man suspected in Brown University shooting and MIT professor’s killing found dead, officials say

Retired NASCAR driver Greg Biffle and family among 7 killed in North Carolina plane crash

Arizona jury sentences man to death in string of killings in metro Phoenix during 2017

Dry needling is common around the NFL, and players aren't worried despite Watt's collapsed lung

WNBA players union authorizes negotiators to call a strike if needed during CBA talks

Timberwolves formalize a reunion with Kevin Garnett, with a plan to finally retire his No. 21 jersey

In recorded message, Rob Reiner urges resiliency for Holocaust survivors at Hanukkah event

Trump signs executive order that could reclassify marijuana as a less dangerous drug

House Democrats release more photos from Epstein's estate

Wall Street rises after an encouraging inflation update, as Micron helps AI stocks stop their slide

Tennessee governor pardons country star Jelly Roll, who has sought redemption from criminal past

Trump's handpicked board votes to rename Washington performing arts center the Trump-Kennedy Center

Prosecutor says 14 Minnesota programs are targeted for fraud and the state is swamped with crime

Multiple deaths reported in North Carolina crash of business jet connected to retired NASCAR driver