Director, Center for Environmental Journalism: colorado.edu/cej/. Columnist for Discover magazine. Freelance science & environmental journalist.
Joined August 2008
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689 Photos and videos
Feb 23
President Trump's Greenland moves burst from this broader—and more worrying—geopolitical context, driven in the background by climate change. (h/t @NilsenThomas ) time.com/7380037/arctic-clim…
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3 Feb 2025
With the onset of La Niña's cooling influence, Earth's fever was supposed to continue easing a bit . But in January, the opposite happened: We rocketed back into record high global heating territory. @DiscoverMag discovermagazine.com/environ…
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31 Jan 2025
A confluence of factors is making wildfires worse. Among them: increasingly dramatic swings between wet and dry conditions in a warming world — climate "whiplash." @DiscoverMag @Weather_West discovermagazine.com/environ…
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9 Jan 2025
L.A.'s firestorms have already burned an area nearly twice as large as Manhattan. Here's what the wildfire cataclysms look like from space. @DiscoverMag discovermagazine.com/environ…
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1 Jan 2025
A Year on Planet Earth—Part3: In the finale of my series recapping some of the most significant events of 2024, I start with the record-setting Atlantic hurricane season. And then, for balance, finish with dazzling events of great beauty. @DiscoverMag discovermagazine.com/planet-…
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1 Jan 2025
A Year on Planet Earth–Part2: With relentless, record-setting heat, rampaging wildfires, and extreme storms, we have ample reason for concern. But 2024 also brought events of great beauty and creative energy. @DiscoverMag discovermagazine.com/planet-…
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31 Dec 2024
From vicious storms and relentless global heating, to volcanic eruptions and shimmering aurora, compelling images help tell the story of a drama-filled year. Part 1 of a 2-part series. discovermagazine.com/planet-…
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18 Nov 2024
This year likely will end as warmest on record, and new findings show Earth's icy places are suffering. Meanwhile, CO2 emissions continue to rise—and efforts to turn the climatic tide are increasingly threatened. @DiscoverMag #COP29 discovermagazine.com/environ…
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9 Nov 2024
Winter's polar night has been spreading steadily southward in the Arctic, but thanks to significantly warmer temps than average, sea ice hasn't kept pace, reports @NSIDC. And the situation in Antarctica is even worse. @DiscoverMag discovermagazine.com/environ…
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29 Oct 2024
"It's the economy, stupid," right? Absolutely! And if that's your concern going into the election, recent research shows you should vote based on energy innovation to combat climate change. @DiscoverMag @EnergyInnovLLC discovermagazine.com/environ…
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24 Oct 2024
After 15 months of global heating records, Earth finally caught a break: September wasn't another record-shatterer. Instead, it was the 2nd-warmest September. Meanwhile, a U.N. report released today shows we're far from taming global heating. @DiscoverMag discovermagazine.com/environ…
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22 Oct 2024
Thanks to a massive flare and explosion on the Sun, millions of people were treated recently to dazzling aurora borealis displays of red, green and pink lights in the sky. But the view from space may have been even more mind-blowing. @DiscoverMag discovermagazine.com/planet-…
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27 Sep 2024
With Helene, the U.S. has seen a record eight Cat 4 or Cat 5 Atlantic hurricane landfalls in the past eight years. This story combines satellite and other imagery to reveal its power and immensity, along with possible climate connections. @DiscoverMag discovermagazine.com/environ…
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26 Sep 2024
From open water at the North Pole, to a marathon run on an ice floe, it was quite an Arctic summer. The ice shriveled to its lowest extent for the year on Sept. 11, covering ~749,000 fewer square miles of ocean than the long-term average. @DiscoverMag discovermagazine.com/environ…
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3 Sep 2024
1/We've known for awhile that 2023 was by far the warmest year on record. Now, a report reveals other unsettling trends. Here in part 1 of a 3-part series, I focus on the accelerating buildup of greenhouse gases in the atmosphere. @DiscoverMag discovermagazine.com/environ… Part 2→
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3 Sep 2024
2/The ever-thickening blanket of greenhouse gases we've thrown over the planet has caused record-shattering temps on land and at sea, as described here in Part 2 of a series about the State of the Climate in 2023 report. @DiscoverMag discovermagazine.com/environ… Part 3→
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3 Sep 2024
3/ The report reveals new details about climate change, including dissipating cloudiness, paltry precipitation (but also stronger deluges), expanding drought, record-setting wildfires, shriveling glaciers and ice sheets, and rising sea level. @DiscoverMag discovermagazine.com/environ…
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31 Jul 2024
The Alexander Mountain fire lights up the night sky over the foothills near Loveland, CO. It has scorched 5,080 acres—more than a third the size of Manhattan. It's 0% contained. (I took the photo late Tuesday from ~23 miles away in Niwot, with a long lens.)
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31 Jul 2024
Two fire-fighting planes circle over the Stone Canyon Fire during a smokey sunset today. As of 9p, the blaze had scorched ~1,320 acres, according to the Boulder Office of Disaster Management. That's a huge increase in size in just a matter of hours. Two structures have been lost.
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30 Jul 2024
The Stone Canyon Fire—the second in two days along Colorado's Front Range—has prompted evacuations near Lyons, north of Boulder. Hot, bone dry winds are whipping the flames. Nearby, the Alexander Mt. Fire has grown significantly. #cofire
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