UN weather agency affirms 2020 Arctic heat record in Siberia

The U.N. weather agency said Tuesday it has certified a 38-degree Celsius (100.4 Fahrenheit) reading in the Russian town of Verkhoyansk last year as the highest temperature ever recorded in the Arctic, the latest in a string ...

EXPLAINER: Was tornado outbreak related to climate change?

The calendar said December but the warm moist air screamed of springtime. Add an eastbound storm front guided by a La Nina weather pattern into that mismatch and it spawned tornadoes that killed dozens over five U.S. states.

Microbes and viruses: A threat to Mars?

The Atacama Desert stretches along Chile's Pacific coast over 100,000 square kilometers. It is one of the most arid places in the world. Annual precipitation averages 0.5 mm, which is less than for the Death Valley in California.

Sierra Nevada shown to have two geologic birthdays

When geologist Elizabeth Miller started mapping a fault system in Death Valley, she questioned the origin of some sedimentary rocks previously assumed to be locally derived. Now, analysis has revealed where they really came ...

Study shows vaccine protects dogs against Valley fever

A possible canine vaccine for Valley fever took one giant step closer to becoming a reality thanks to a University of Arizona College of Medicine—Tucson-led study that showed the vaccine provided a high level of protection ...

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