After 14 years of professional work as a member of the Anthropocene Working Group (AWG), I’ve now tendered my formal resignation. The pdf of the letter is <here>. Dear Anthropocene Working Group: It is with mixed emotions that I am sending this letter to resign from the Anthropocene Working Group. I’ve been a member since AWG began in 2009 and […]
Ever since Navin Ramankutty and I introduced anthromes in our 2008 paper, “Putting people in the map”, I’ve been working to shift global thinking on people and nature. Today, our PNAS paper “People have shaped most of terrestrial nature for at least 12,000 years” presents evidence supporting a new paradigm for global ecology and conservation. Our work confirms, through a […]
It was a great week at the American Geophysical Union(AGU) Meeting in San Francisco, especially with the many sessions sponsored by IGBP – the international scientific program that brought you the Anthropocene– as part of its transition to Future Earth. I gave a talk on the emergence of humans as a global force in the Earth System based on my recent […]
Is our planet now threatened by rapid global changes caused by human forcing of the terrestrial biosphere past a planetary tipping point? Two different articles in Nature have suggested that the answer may be yes (Rockstrom et al. 2009, Barnosky et al., 2012). Such is the question that Barry Brook, myself and colleagues evaluated recently in a peer-reviewed journal article […]
Acting locally: no problem. Thinking globally: big problem! To solve global problems, we need global understanding of local change. Yet no matter how hard we try, it remains extremely difficult to think globally. Even in a world where Earth’s entire surface is scanned daily by satellites and made available online. Even as all of human knowledge and most of humanity […]
“Large amounts of energy will be required to fuel economic growth, increase standards of living, and lift developing nations out of poverty.” (Brown et al., 2011; see Figure at left). A key message from Brown et al. in their must-read empirical and theoretical summary of relationships between energy and economic development. The paper reveals a hard fact of human systems: […]
What kind of biosphere do you want? Great question! And great to see it connected with beautiful prize-winning graphics at visualizing.org. But on thinking further, it seems clearer than ever that the inspiration behind this- the Planetary Boundaries concept, is going completely in the wrong direction. I had my reservations about the original planetary boundaries work- now these graphics concern […]
“We cannot expect nature to remain in a constant condition and thus provide us with a simple solution to the questions of what is “natural” and what is desirable.” (Botkin 1990, p 181) . Just one of many great thoughts in Daniel Botkin‘s 1990 classic: Discordant Harmonies: a New Ecology for the Twenty-first Century. I’d seen Botkin’s Environmental Science textbook, […]
“So how did the biosphere become anthropogenic anyway?” asked an astute audience member at my 2007 AGU presentation (powerpoint). I had just given a presentation on my work with Navin Ramankutty demonstrating that human populations and their use of land have reshaped most of the terrestrial biosphere into anthropogenic biomes, or anthromes (Ellis and Ramankutty 2008). Great question! I had […]
When did rice change the planet? Rice is the most important food crop on earth, feeding more than half of all humans. Most is produced in Asia in the flooded paddy systems that form the core of the most intensively-managed of all ancient agricultural anthromes, the rice villages, where its high productivity in response to sophisticated irrigation schemes and traditional […]
What happens when humans finally win the war with nature and end up in charge of ecology? A question for the future? Think again. In “Peak Wood: Nature Does Impose Limits”, John Perlin describes what happens when human societies, starting in prehistory, have completely transformed their ecosystems and ultimately themselves, by clearing away forests to improve hunting and gathering, for […]
Now that we’re busy hacking the planet, we need all the help we can get. We humans are pretty good at solving complex problems like choosing the next move in chess- better than most machines. But as Gary Kasparov notes in Clive Thompson’s Wired piece on the Cyborg Advantage, “a weak human with a machine can be better than a […]