Rob Griffith / AP

New Zealand scientists recently found unexpectedly hot water while drilling into an earthquake fault in the country, according to a new study in Nature.

Why it matters: The 100-degree Celsius water, which would boil on the surface but remains a liquid because it is under pressure, could be used to generate electricity or provide direct heating. The Alpine Fault where it was found stretches for hundreds of miles — and is one of the most active earthquake faults in the world — but it is unclear how easy it would be to extract energy.

Why it's surprising: Usually geothermal energy is found around volcanic activity, but there aren't any volcanoes nearby where the researchers were drilling.

How the hot water was created: The researchers posit that earthquakes have moved hot rocks up from beneath the Earth's surface into the mountains, which have broken up from the shaking, therefore allowing rain and melted snow to trickle through the interior.

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Amy Harder, author of Generate
3 hours ago - Energy & Environment

Climate change goes mainstream in presidential debate

Photo illustration: Aïda Amer/Axios. Photo: Olivier Douliery-Pool/Getty

The most notable part of Thursday’s presidential debate on climate change was the fact it was included as a topic and assumed as a fact.

The big picture: This is the first time in U.S. presidential history that climate change was a featured issue at a debate. It signals how the problem has become part of the fabric of our society. More extreme weather, like the wildfires ravaging Colorado, is pushing the topic to the front-burner.

Finally, a real debate

Photo: Morry Gash/AP

A more disciplined President Trump held back from the rowdy interruptions at tonight's debate in Nashville, while making some assertions so outlandish that Joe Biden chuckled and even closed his eyes. A Trump campaign adviser told Axios: "He finally listened." 

The result: A real debate.

Biden to Trump: "I have not taken a penny from any foreign source ever in my life"

Former VP Joe Biden pushed back Thursday against allegations from President Trump, saying he had never profited from foreign sources. "Nothing was unethical," Biden told debate moderator Kristen Welker about his son Hunter's work in Ukraine while he was vice president.

Why it matters: Earlier on Thursday, Hunter Biden's former business partner, Tony Bobulinski, released a statement saying Joe Biden's claims that he never discussed overseas business dealings with his son were "false."