Climate change is altering the conditions that lead to hurricane development. That’s made some meteorologists reconsider how we measure those storms.

Experts have used the Saffir-Simpson scale since 1969 to classify hurricanes by their wind speeds, ranging from Category 1 to Category 5.

Zachary Handlos, the director of Atmospheric and Oceanic Studies at Georgia Tech which is examining how forecasters currently classify and communicate storm threats, says each storm is different and could result in a range of consequences.

"There's storm surge […] there's inland flooding from the significant rainfall — that was the big thing with Helene last year in our area," he said, noting that previously, Hurricane Irma only brought sustained winds to the region.

"You can also get tornadoes within hurricanes too, so not only are you dealing with flooding, storm surge, you also have to deal with tornadoes in the area at the same time," Handlos said.

He said any new scale should be complementary to the Saffir-Simpson scale, not replace it, as researchers still rely on it for historical study and communication with the public.

Georgia Public Broadcasting

A NASA-funded research team at Georgia Tech that includes Regents' Professor Thomas Orlando and Senior Research Scientist Brant Jones has developed a method for extracting water from the Moon to generate the hydrogen and oxygen needed for propulsion fuels for solar system exploration. They describe their experimental work in Thermal extraction of H2O(s) from lunar regolith simulant with concentrated solar irradiation: Experimental analysis, published at Acta Astronautica.

The researchers propose an interesting way to extract water from the potentially water-rich icy regions at the Moon’s pole. These regions are of interest to space agencies because the presence of water, which can be extracted or retrieved, is required for human exploration.

SolarPACES

Scientists have long thought that a lizard losing a leg should be a death sentence. New evidence seems to overturn this assumption, showing that some lizards can not only survive, but even thrive after losing one or more limbs.

James Stroud, an evolutionary biologist at the Georgia Institute of Technology, has spent years catching lizards in the wild to study how they evolve. He and his colleagues long thought that even the smallest difference in the length of a lizard’s leg could affect its ability to run from predators and chase their prey. Losing an entire limb seemed much more severe.

However, every now and then he and his colleagues would observe something odd. “We’ll find a lizard completely missing its leg, and it seems fine,” Dr. Stroud said. He casually calls them “three-legged pirate lizards.”

The New York Times

The Blue Mountains in eastern Jamaica could be a region where landslides occur with heavy rain due to steep hill slopes, said Karl Lang, an assistant professor of geology at the Georgia Institute of Technology.

Lang said regions that have been clearcut for agriculture could be susceptible to landslides because the plants that previously grew there helped bind the soil together by the strength of their roots.

Some roads built on steep hills in Puerto Rico were affected by landslides when Hurricane Fiona (2022) and Hurricane Maria (2017) hit, said Lang. “Every time you cut into a steep slope, you make a steeper slope above the road,” he said.

“The real problem there is that you create the road that’s your conduit in and out of the location … and then the landslide dams the road. You create your own problem both by creating the increased probability of a landslide, but also by having those landslides occur where you need to go,” said Lang.

AP News

Assistant Professor Christopher Carr co-authored an article published in The Conversation that discusses NASA's ESCAPADE mission to Mars. Carr characterizes the mission as a “testament to a new era in spaceflight”.

The Conversation