Administrator’s note: It’s my pleasure to feature a guest essay by Glen Barry. Dr. Barry is founder and President of Ecological Internet; provider of the largest, most used environmental portals on the Internet including the Climate Ark and EcoEarth.info. A conservation biologist and political ecologist, he writes impassioned, thought provoking essays from an uncompromising ecological point of view. They appear regularly on his blog, Earth Meanders, where this one originated.
In this essay, Dr. Barry takes a strong stance against geo-engineered solutions to climate change. This is a contentious topic on which respected scientists and environmentalists hold a wide range of opinions. Glen’s essay prompts us to think hard about fundamental questions such a topic raises, questions concerning the role of humans in the global ecology. My thanks to Glen for making it available. — JF
By Glen Barry:
Is humanity so resistant to change that we will tamper with the biosphere’s workings to construct a “Frankensphere” rather than reducing population, consumption and emissions?
It is being widely suggested that humanity can “geo-engineer” a global solution to climate change; that is, modify the Earth’s biosphere at a planetary scale. Many methods are proposed. Most include either reflecting additional solar radiation away from the Earth, or using the ocean to store more carbon.
Reactionary geo-engineering proposals emerge largely from a sense of desperation as the world fails to rein in greenhouse gas emissions, and an unwillingness to make necessary societal and personal changes in response to deadly climate change. To some the extreme action of taking the Earth’s ecological systems into techno-human hands seems sensible given indications that global heating is proceeding more rapidly than thought, as shown by unexpectedly quick melting of Arctic sea ice.
Risky climate geo-engineering schemes include giant vertical pipes in the ocean to increase ocean circulation and thus marine carbon sequestration, similarly growing vast blooms of ocean plankton by fertilizing with iron, erecting giant mirrors above the earth to reflect the sun’s energy, and dropping sulfur particles from balloons at high altitude to do the same.
Two rogue US companies are moving forward with plans to fertilize the ocean with iron to create plankton blooms to suck heat-trapping carbon dioxide out of the atmosphere. They are motivated by profits from the growing carbon credit market, rising public demands for action, and politicians eager to avoid painful reductions in emissions. There is little that can be done to stop them, as no applicable laws or treaties exist. (more…)