Graph of the Day: NOAA annual greenhouse gas index (AGGI), 1700-2015

30 April 2016 (NOAA) – The annual greenhouse gas index (AGGI) is a measure of the warming influence of long-lived trace gases and how that influence is changing each year. The index was designed to enhance the connection between scientists and society by providing a normalized standard that can be easily understood and followed. The […]

Estimated disruptions to Earth’s great elemental cycles

23 March 2016 (Desdemona Despair) – Back in 2011, Desdemona was asked by a local church to give a presentation on the condition of the world’s oceans (State of the Oceans 2011 video; pdf slide deck; PowerPoint). As part of the talk, Des wanted estimates for human disturbances to the great cycles of elements on […]

Carbon footprint of Burning Man: 27,000 tons of CO2 per year

By Katie Herzog 21 August 2015 (Grist) – Get ready, folks! The most magical time of year is almost upon us. That’s right: Burning Man. Lest you mistake me for a tech billionaire with a penchant for fuzzy boots, hula hoops, group showers, and dudes named Dusty Unicorn — au contraire. The reason I love […]

Graph of the Day: Carbon emissions and human population, 1751-2013

13 June 2015 (Desdemona Despair) – Data show that growth of human carbon emissions in the modern era is pretty close to exponential (cf. “Graph of the Day: Global carbon emissions from fossil fuels, 1751-2013”). But what about carbon emissions per person? The Carbon Dioxide Information Analysis Center (CDIAC) maintains a database of fossil-fuel CO2 […]

Video: State of the Oceans 2011

20 November 2011 (Desdemona Despair) – Here’s Desdemona giving a presentation on the accelerating destruction of the oceans by various human activities. It’s basically Graph of the Day with narration. Download the slide deck: http://www.leftopia.com/presentations/State_Of_The_Oceans_2011.pdf http://www.leftopia.com/presentations/State_Of_The_Oceans_2011.pptx State of the Oceans 2011 Technorati Tags: ocean acidification,global warming,climate change,phenology,overfishing,ocean overexploitation,fish decline,mass extinction,extinction,coral,habitat loss,ecosystem disruption,dead zone,ocean anoxia,phosphorus,nitrogen,carbon,carbon dioxide,overpopulation,doom

Thawing permafrost likely to boost global warming

The thawing of permafrost in northern latitudes, which greatly increases microbial decomposition of carbon compounds in soil, will dominate other effects of warming in the region and could become a major force promoting the release of carbon dioxide and thus further warming, according to a new assessment in the September 2008 issue of BioScience. The […]

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