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By Nancy Kilpatrick (Editor), Kelley Armstrong, Nancy Holder, Erin Underwood, Paul Kane

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Available on compatible , the free NOOK App, and in My Digital Library

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NOOK GlowLight 4 Plus
NOOK GlowLight 4e
NOOK GlowLight 4
NOOK GlowLight Plus 7.8"
NOOK GlowLight 3
NOOK GlowLight Plus 6"

NOOK Tablets

NOOK 9" Lenovo Tablet
NOOK 10" HD Lenovo Tablet
NOOK Tablet 7" & 10.1"
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Overview

Modern lives seem littered with expiration dates. Packaging tells us when our food will go bad; when we can expect appliances to cease functioning; when contracts for the internet finish! But as annoying as these small expiration dates are, they fade to nothing compared to the larger events: when a species goes extinct; when a body of water evaporates, or dies because the PH balance alters; when giant icebergs break apart and glaciers melt forever, threatening the ecosystem of this planet.

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