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Staying current for Chapter 3 See non-chronological resources for this chapter. { Ozone Contents } 2023-07-15. Why Sunscreen Is the Only Anti-Aging Product You Need. [https://www.nytimes.com/2023/07/15/well/live/sunscreen-aging-skin-care.html] By Dana G. Smith, The New York Times. Excerpt: …Dr. Frey said that as much as 80 percent of the skin changes we associate with age are actually caused by 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 } 2025-02-18. New Theory Increases Probability of Intelligent Life beyond Earth. By Science News. Excerpt: In 1983, the theoretical physicist Brandon Carter concluded that the time it took for humans to evolve on Earth — relative to the total lifespan of the Sun — suggests […]

Staying current for Chapter 10 { Life and Climate Contents } 2025-04-24. Giant icebergs once drifted off the coast of Britain, scientists find. By Karen McVeigh, The Guardian. Excerpt: Giant, flat-topped icebergs the size of the city of Cambridge drifted off the coast of Britain during the last ice age, according to a study that has […]

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 […]