Paul Smiths College Professor Curt Stager’s new book, Deep Future: The Next 100,000 Years of Life on Earth (St. Martin’s Press, 2011) is a fresh look at global climate change. Stager’s approach is that of the paleoecologist, a discipline that has traditionally been focused on reconstructing the paleoenvironment using the fossil record to clarify the relationship that plants, animals, and humans have to their environment in the past.
Typically, paleoecological researchers have aimed their attentions on the Quaternary period (the last two million years), particularity with studies of the Holocene epoch (the last 11,000 years), or the Pleistocene glaciation period (50,000 to 10,000 years ago). Stager’s Deep Future looks in the other direction, 100,000 years into the future.
Stager is quick to point out that no, humans won’t go extinct; some species will win, some lose, because after temperatures rise, they’ll fall (at a slower rate). Deep Future is built around the Anthropocene, the first epoch in which humans have come to influence the Earth’s ecosystems.
Scientists are somewhat divided over when the Anthropocene begins. Some suggest 8,000 years ago, when we began clearing forests to raise animals and grow crops during the Neolithic Revolution, others establish a date as late as the Industrial Revolution of the 1750s. Both agree that what’s significant is that atmospheric carbon dioxide (CO2) is increasing at a faster rate, and to a much greater extent, that previous glacial-interglacial cycles of the past million years, and that humans are the cause.
Deep Future illuminates the changes of the coming 100,000 years, among them the effect we’ve already had in delaying the next ice age. Describing himself as a “converted climate skeptic” thanks in part to research at Paul Smiths into weather and lake ice records in the Adirondacks, Stager explores the idea that our distant descendants may well applaud us for the changes we cause, but many of the earth’s species will suffer dramatic transformations. Acidification of our oceans will impact sea species, shifting micro climates will force great species migrations to adapt, which on land may be blocked by human development.
The bottom line of Deep Future is that what we decide to do now about controlling our carbon emissions will have tremendous impacts on our future descendants. Putting it into an even larger context, Stager offers this unique perspective: “If we burn through all our fossil fuels now, we will leave nothing for the people of the future to burn to stave off future ice ages and prevent the crushing devastation of migrating ice sheets.”
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