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Global Change, Land use, Methods, Sustainability »

Friday, December 18, 2009 | 0 Comments

With carbon, climate and COP 15 in the news, Google and Microsoft are now battling over carbon mindshare, introducing the latest web-based “Carbonware” designed to help combat carbon emissions and global warming.  These add to a growing list that includes the many “carbon foot... [More]

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Global Change, Land use, Sustainability »

Monday, December 14, 2009 | 1 Comments

"How do we feed a growing world without destroying the planet?" asks Jon Foley’s new 3 minute video (see below).   It’s a great question.  To get enough food for our existing billions, we already use about 40% of Earth’s ice-free land to produce crops and livestock.&nbs...; [More]

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Global Change, Sustainability »

Tuesday, December 8, 2009 | 6 Comments

Our planet is heating up in a hurry!  Call in the Earth doctors!  Let’s fix the planet!   Now that we’ve pushed Earth systems out of the comfort zone, Earth and environmental scientists are increasingly being called on to address the big questions that affect all of us, ... [More]

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Global Change »

Sunday, November 15, 2009 | 0 Comments

Do not ask for whom China’s carbon burns, it burns for you!  A new article in press at Energy Policy by Lin and Sun assesses the extent of carbon emitted to the atmosphere in China because of exports produced for consumption by other nations.  While the exact contributions by exports... [More]

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Ecosystems, Global Change, Land use, Methods »

Monday, October 26, 2009 | 0 Comments

Will the census of the future ask homeowners how many trees they have on their property? With humanity now faced with a changing climate under even the most stringent efforts to reduce carbon emissions, carbon accounting has become a hot topic for scientists, politicians and economists.  While... [More]

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Global Change, Sustainability »

Tuesday, October 6, 2009 | 3 Comments

Are humans pushing earth systems towards environmental catastrophe?  Or are we just worrying needlessly about the novel state of the earth that we have now created?  Or both? In a Nature Feature entitled “A safe operating space for humanity” a team of scientists affiliated wit... [More]

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Global Change, Land use »

Friday, August 21, 2009 | 1 Comments

Millennia before humans discovered coal, indeed, millennia before there was civilization, Homo sapiens had discovered fire and was making extensive use of it.  In a study just published by Bill Ruddiman and myself (Ruddiman and Ellis, 2009), we show that early farmers using fire likely cleared ... [More]

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Anthromes, Ecosystems, Global Change, Land use, Sustainability »

Thursday, July 23, 2009 | 1 Comments

Should we conserve nature even if it is not wild?  Humans have transformed 40% of earth’s ice-free land into crop fields, pastures and settlements, and have embedded another 37% within used and populated landscapes (anthromes).  While 23% is still free of people and their u... [More]