OZ3C. Stay Current—The Dangers of UV to Living Things

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 […]

OZ2C. Stay Current—Ozone in Nature

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 […]

OZ1C. Stay Current—Strange Happenings

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

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 […]

LC13C. Stay Current—What Does Earth’s Past Tell Us About Our Future?

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 […]

LC12C. Stay Current—Climate & Culture

Staying current for Chapter 12 { Life and Climate Contents } 2024-12-30. Ice cores finger obscure Pacific volcano as cause of 19th century climate disaster. By Richard Stone, Science. Excerpt: The 1831 eruption of Zavaritskii volcano in the Kuril Islands sparked cropped failures and famines. The first sign of an impending cataclysm in the summer […]

LC11C. Stay Current—Climate and Human Evolution

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 […]

LC10C. Stay Current—The Ice Ages

Staying current for Chapter 10 { Life and Climate Contents } 2024-11-08. Centennial-Scale Jumps in CO2 Driven by Earth’s Tilt. By Katherine Kornei, Eos/AGU. Excerpt: Human activity is pumping carbon dioxide into Earth’s atmosphere at an unprecedented rate. But centennial-scale increases in atmospheric carbon dioxide—albeit significantly smaller—also persisted in the past. These so-called carbon dioxide jumps […]

LC9C. Stay Current—What Happened to the Dinosaurs?

Staying current for Chapter 9 { Life and Climate Contents } 2023-04-26. Do Volcanoes Add More Carbon Than They Take Away?. [https://eos.org/research-spotlights/do-volcanoes-add-more-carbon-than-they-take-away] By Saima May Sidik, Eos/AGU. Excerpt: In a new study, Zhong et al. discovered that a volcano in northeast China emits a small net amount of carbon each year. Over geological timescales, that could have […]