Category Archives: Climatology and Meteorology

El Nino CO2 Levels Suggest Grim Carbon Future

Image: OCO-2 /JPL-Caltech/NASA.

The years 2015 and 2016 saw record levels of excess carbon dioxide in the atmosphere, even though human carbon emissions have stabilized in recent years. Now, scientists think they know why.

Read/listen to my full story at KJZZ’s Arizona Science Desk:
NASA: Spike In Atmospheric CO2 Related To El Nino

Worth Doing Right: How Climate Change Could Throw a Wrench Into Road repairs

Repairing with the wrong materials for shifting climates could be a road to nowhere, like this spot in the Suffolk village of Covehithe. Picture by Timothyansell123.

The American Society of Civil Engineers has given America’s roads a D rating. But a recent study shows that trying to raise that grade without accounting for climate change could put the country’s roadways at risk.

Read/listen to my full story at KJZZ’s Arizona Science Desk:
Not Planning For Climate Change Could Cost Billions In Infrastructure Repairs Down The Road

Study: Expect Southwest U.S. Monsoon Storms to Intensify

Arizona monsoon storm near Carefree Highway. Photo by Shredex.

The most extreme monsoon storms are growing more intense in central and southwestern Arizona, according to a study by the University of Arizona and the National Autonomous University of Mexico.

The findings conform to patterns expected under climate change conditions. Indeed, experts have already observed this effect.

Read/listen to my full story at KJZZ’s Arizona Science Desk:
Study Shows More Intense Monsoon Storms on the Horizon

Taking the Mystery Out of Microbursts

Microburst near Amarillo, Texas. Image from the National Severe Storms Laboratory. Credit: Jason Boggs.

Phoenix, Arizona, is not known for strong winds, but that all changes when monsoons annually deliver destructive downdrafts like the one that damaged its five-story Burton Barr Central Library. In this piece, and in the interview that follows it, I clear up some of the confusion that still  whirls around these blasts.

Read/listen to my full story at KJZZ’s Arizona Science Desk:
Understanding How Microbursts Are Formed

Or listen to my interview on KJZZ’s The Show.

We’re Not in Phoenix Anymore: How Radio Signals “Skipped” All the Way to Kansas

Yes, it’s that exciting.

Unlike AM signals, FM is confined to line-of-sight, so Phoenix’s KBAQ radio station doesn’t typically reach much beyond the Valley of the Sun, let alone to a Volkswagen Beetle 875 miles away. So it’s no wonder that Ken Baker of the Radio Kansas Network was surprised to see what resolved on his HD tuner that day.

Read/listen to my full story at KJZZ’s Arizona Science Desk:
How Phoenix-Area Radio Signals Can Bounce All The Way To Kansas