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Staying current for Chapter 3 See non-chronological resources for this chapter. { Ozone Contents } 2025-06-27. UV-C light kills nearly everything—except this unusual organism. By Hannah Richter, Science. Excerpt: …UV light that keeps beachgoers reaching for the sunblock isn’t even the worst the Sun sends our way. Lucky for us, Earth’s ozone layer blocks the […]

Staying current for Chapter 2 { Ozone Contents } 2023-05-30. Plants Leave Chemical Fingerprints on an Ozone-Depleting Gas. [https://eos.org/research-spotlights/plants-leave-chemical-fingerprints-on-an-ozone-depleting-gas] By Sarah Stanley, Eos/AGU. Excerpt: Methyl chloride (CH3Cl) is one of the most common chlorine-based gases in Earth’s atmosphere. Along with related chemicals, it depletes the ozone layer, exposing life on the planet to more of the Sun’s ultraviolet […]

Staying current for Chapter 1 { Ozone Contents } 24 December 1997. Ozone Depletion FAQSample Question–Subject: 1.3) How does the composition of the atmosphere change with altitude? (Or, how can CFC’s get up to the stratosphere when they are heavier than air?) Answer: In the earth’s troposphere and stratosphere, most _stable_ chemical species are “well-mixed” – […]

OZONE is a success story about how people around the globe are cooperating to solve a serious environmental problem. See Overview. Contents Chapter Titles Investigations Stay Current 1. Strange Happenings Chapter 1 2. Ozone in Nature 2.1 Sun’s Spectrum Chapter 2 3. The Danger of UV to Living Things 3.1 Melanoma Increasing3.2 Sunscreens3.3 Sunglasses3.4 Effect […]

{ Life and Climate Contents } { All GSS Books }

Staying current for Chapter 13 { Life and Climate Contents } 2023-03-16. Tonga Eruption May Temporarily Push Earth Closer to 1.5°C of Warming. [https://eos.org/articles/tonga-eruption-may-temporarily-push-earth-closer-to-1-5c-of-warming] By J. Besl, Eos/AGU. Excerpt: The underwater eruption of Hunga Tonga–Hunga Ha‘apai sent megatons of water vapor into the stratosphere, contributing to an increase in global warming over the next 5 […]

Staying current for Chapter 12 { Life and Climate Contents } 2025-08-29. Stalagmites reveal devastating droughts that helped spur Maya breakdown. By Taylor Mitchell Brown, Science. Excerpt: About 1200 years ago, social strife and upheaval shook the Maya world. Sites across southern Mexico, Belize, and Guatemala saw their populations dwindle. …Scientists have long puzzled over […]

Staying current for Chapter 11 { Life and Climate Contents } 2025-06-18. When Humans Learned to Live Everywhere. By Carl Zimmer, The New York Times. Excerpt: Our closest living relatives — chimpanzees and bonobos — are confined to a belt of Central African forests. But humans have spread across every continent, even remote islands. Our […]

Staying current for Chapter 10 { Life and Climate Contents } 2025-11-24. New Lessons from Old Ice: How We Understand Past (and Future) Heating. By Mariana Mastache-Maldonado, Eos/AGU. Excerpt: Fragments of blue ice up to 6 million years old—the oldest ever found—offer key insights into Earth’s warming cycles. Researchers are using these ancient data to […]

Staying current for Chapter 9 { Life and Climate Contents } 2025-10-23. Dinosaur diversity before the asteroid. By Lindsay Zanno, Science. Excerpt: Paleontologists largely agree that an asteroid dealt the final blow to non-avian dinosaurs, but their susceptibility to annihilation when the asteroid plummeted to Earth remains an open question. …Flynn et al. (1) reveal that a […]