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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 } 2025-05-01. Redated artifacts rewrite how Indigenous people responded to European contact. By Lizzie Wade, Science. Excerpt: …archaeologist Jennifer Birch thought she had a good handle on when and why Ontario’s largest excavated Iroquois village, known as the Jean-Baptiste Lainé Site, was abandoned. …people deserted […]

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 } 2025-08-04. Cave Deposits Reveal a Permafrost-Free Arctic. By Kaja Šeruga, Eos/AGU. Excerpt: About 15% of the land area in the Northern Hemisphere is currently covered by perennially frozen soil known as permafrost. But that has not always been the case. As global temperatures fluctuated in Earth’s […]

Staying current for Chapter 9 { Life and Climate Contents } 2025-05-15. An Ancient Warming Event May Have Lasted Longer Than We Thought. By Rebecca Owen, Eos/AGU. Excerpt: Fifty-six million years ago, during the Paleocene-Eocene Thermal Maximum (PETM), global temperatures rose by more than 5°C over 100,000 or more years. Between 3,000 and 20,000 petagrams of carbon […]