Copenhagen Climate Conference: Cyclic Repetition with a Difference? October 2, 2009
Posted by Jill S. Schneiderman in climate change, geologic time.3 comments
As Stephen Jay Gould wrote in Time’s Arrow, Time’s Cycle: Myth and Metaphor in the Discovery of Geological Time (Harvard, 1987), “If moments have no distinction, then they have no interest” (80). Gould proposed this aphorism as a description of the troubled situation that pure visions of time’s cycle impose upon history.
This passage holds significance for me as the world anticipates the upcoming United Nations climate change conference to be held in Copenhagen this December. Recently in Barbados’ daily newspaper, The Nation, a special two-page section drew readers’ attention to the country’s celebration of World Maritime Day (sponsored by the International Maritime Organization of which Barbados has been a member since 1970). The newspaper reported that the purpose of the day is to focus attention on the importance of the shipping industry, safety, and security, and the marine environment (24 September 2009, 20). The designated theme for World Maritime Day 2009 is climate change.
As an island nation with a heavily developed seashore and nearshore populated by locals as well as visitors, Barbados will face substantial challenges as sea level rises dramatically. Coral bleaching and depletion of seafood here also been linked to climate change. Furthermore, as a water scarce country, climate change also threatens drinking water supply of Bajans and their visitors.
So I’m struck by the overlap of the upcoming UN Conference, the focus of World Maritime Day and the precarious future portended by unattended climate change. It has me thinking about the cycles and arrows of time. Gould wrote about the model of a large disk rolling along a railroad track as a metaphor for intertwined arrows and cycles of time (81). Gould points out that cycles advancing as they turn allow for history. As his proposed aphorism states, moments without distinction have no interest. Without a way to distinguish between a particular stage in the cycle, we are unanchored in time. Everything comes round again, as Gould says (80).
For time to be truly meaningful, it must be more than cyclic repetition. But “cyclic repetition with a difference” as Gould refers to it combines time’s cycle with time’s arrow. Among the speechifying that may occur at Copenhagen, I would anticipate declarations of “now is the time,” exhortations to take action to curb greenhouse gas emissions immediately. It’s likely that speakers will extol the virtue of quick action because of our previous inattentiveness to increased greenhouse gas emissions and consequent global warming. Clearly time plays a significant part in this global conversation. The idea that there is urgency to the climate change talks, means the subject is climate change through time, not simply climate change in space.
My mind runs to the 1997 Kyoto Conference on Climate Change. How did the verbiage of that meeting go? Will verbiage at the Copenhagen conference sound the same as Kyoto? If so we will have nothing more than cyclic repetition or in Gould’s words, time’s cycle without time’s arrow.
Are we trapped in the view of climate change constrained by a dominant view of the Earth system as a system of endlessly renewing cycles? Carbon cycle, hydrologic cycle, nitrogen cycle, rock cycle, plate tectonic cycle. Reduce, Reuse, Recycle? With such an emphasis on reusing and recycling, maybe we may have lost sight of time’s arrow– the role that distinctive events play in making history.
Many factors indicate that we are not at the same place in the decision cycle pre-Copenhagen as we were pre-Kyoto. Global temperature is warmer, weather more disrupted, sea level higher. We should behave at Copenhagen in a way consistent with this reality. With such a consciousness, we can act on the arrow as well as the cycles of time as they relate to climate change.
This Date in the Earth Year September 14, 2009
Posted by Jill S. Schneiderman in geologic time.add a comment
Proterozoic life (Image used by permission of A.H. Knoll)
Earth formed approximately 4.5 billion years ago (bya) also known as 4500 million years ago. It’s difficult, maybe even impossible to get a good sense of this length of time. Yet we must “feel deep time in our guts” as my late-mentor Steve Gould referred to the endeavor, if we are to live harmoniously on the planet. Today I write the first of an occasional series, “This Date in the Earth Year,” in an effort to help the layperson develop a feel for geologic (deep) time.
Using a calendar year as a metaphor for the 4500 million years of Earth history and employing January 1, New Year’s Day, as the Earth’s birthday, I calculate the current date’s location in the Earth Year and detail what was happening paleontologically at that moment in Earth history. For example today, September 14, is day 257 out of 365 days in this (non-leap) year. With so much of a calendar year having elapsed, one might think that at this point in the Earth Year, some pretty complex organisms might have been roaming the planet. Not so.
In geologic time, September 14 represents 1330 million years ago, the Proterozoic —the second of two eons that comprise the immense stretch of time called the Precambrian. Many of the most important events in earth history took place during the Precambrian including the formation of life, the accretion of the earth’s first tectonic plates, the proliferation of oxygen in the atmosphere, and the evolution of eukaryotic cells (single-celled organisms with internal organization). Still, at 1330 million years—the middle Proterozoic—the only living things on Earth were ocean-dwelling single-celled organisms.
‘Two-minute lecture’ on Deep Time August 6, 2009
Posted by Jill S. Schneiderman in geologic time.add a comment
rs understand how brief has been human tenure on planet Earth.
earthdharma.org 