Author: Zach
OZ4. CFCs Are Invented
Chapter 4 { Ozone Contents } The previous chapter provided evidence of a link between thinning ozone, increased UV at the Earth’s surface, and the danger posed to humans and other living things. In this chapter we explore another clue to the puzzle: the existence of a new kind of gas in the air produced […]
OZ3. The Danger of UV to Living Things
Chapter 3 { Ozone Contents } When the Earth was unprotected by the ozone layer, the full strength of the Sun’s ultraviolet energy prevented living things from existing outside of the protection of water. After the ozone layer formed, life was able to evolve on land. Although the ozone absorbed most of the Sun’s ultraviolet […]
OZ2. Ozone in Nature
Chapter 2 { Ozone Contents } In order to understand the mystery of why ozone over the South Pole was being destroyed, it is necessary to learn more about ozone and other chemicals that affect it. This will be the subject of Chapters 2, 3, and 4. We’ll return to the mystery in Chapter 5. […]
OZ1. Strange Happenings
Chapter 1 { Ozone Contents } Something strange is happening… There is the possibility of danger… Unknown forces are at work, but there are clues … These are the elements of a mystery, a mystery that cries out for investigation. Solving mysteries is exciting, and it is at the core of what the scientific endeavor is […]
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 […]
Bibliography for Life and Climate
{ Life and Climate Contents } { All GSS Books }
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 } 2023-09-13. Eclipse Records Pin Dates of 12th and 13th Century Eruptions. [https://eos.org/articles/eclipse-records-pin-dates-of-12th-and-13th-century-eruptions] By Kate Evans, Eos/AGU. Excerpt: …ancient observations of rare dark lunar eclipses have recently taken on new importance after scientists used the records to date notable volcanic eruptions that occurred nearly a […]
LC11C. Stay Current—Climate and Human Evolution
Staying current for Chapter 11 { Life and Climate Contents } 2024-01-08. Strong monsoons may have carved a path for early humans out of Africa. [https://www.science.org/content/article/strong-monsoons-may-have-carved-path-early-humans-out-africa] By BRIDGET ALEX, Science. Excerpt: More than 140,000 years ago, East Asia was a much colder, drier place than today—a landscape that likely deterred many African creatures, humans among […]
LC10C. Stay Current—The Ice Ages
Staying current for Chapter 10 { Life and Climate Contents } 2024-07-23. Scientists Find Clues to Atlantic Current’s Future in Ancient Iceberg Debris. By Elise Cutts, Eos/AGU. Excerpt: New research shows that present-day iceberg loss from Greenland stacks up to some of the most dramatic iceberg-slinging episodes in recent geological history. Such events involved the […]