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Can we safely use geoengineering approaches to help cool the planet?
Posted on August 25th, 2009Categorized as Other Tagged as carbon, emission control, geoengineering, global warming
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We may need to try to experiment with certain geoenginnering approaches to stave off catastrophic global heating. This can buy us time to implement carbon emissions reductions to avert the worst effects of catastrophic climate change. Obstacles: We cannot fully predict the outcomes with present knowledge, though we know that some approaches are less wise than others.
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Where will we get enough sustainable energy, and what sources should be prioritized to help focus and co-ordinate research in the next decade?
Posted on August 29th, 2009Categorized as Interdisciplinary Tagged as carbon, energy, funding, setting priorities, sustainable energy
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Carbon has been our primary energy source so far, and is not sustainable. There are many alternatives, but research is fragmented, and each source appears to try and compete and downplay the other, rather than augment one another. This is probably due to limited funding, and an absence of priorities.
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What is the feedback of ecosystems and in particular soils to changing climate?
Posted on September 1st, 2009Categorized as Biodiversity, Earth System Tagged as carbon, ecosystems, feedbacks, soil, soil-carbon processes
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Current models vastly disagree on the fate on the current terrestrial carbon sink, leading to large uncertainties regarding climate-carbon cycle feedback? Recent research indicates that soils contain more than 4 times as much carbon as the atmosphere (>3000 Pg), and soil carbon processes are clearly understudied.
