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...concentration limit of no more than 350 parts per million (p.p.m.) - meaning no more than 350 atoms of carbon for every million atoms of air. (Before the industrial age, levels were at 280 p.p.m.; currently they're at 387 p.p.m. and rising.) That, scientists believe, should be enough to keep global temperatures from rising more than 2°C above pre-industrial levels, which should be safely below a climatic tipping point that could lead to the wide-scale melting of polar ice sheets, swamping coastal cities. "Transgressing these boundaries will increase the risk of irreversible climate change," writes Rockstrom...

Author: /time Magazine | Title: How Much Human Activity Can Earth Handle? | 9/23/2009 | See Source »

...summit, some clearly posted speed limits from scientists could help politicians craft global deals on carbon and other shared environmental threats. It's tough for negotiators to hammer out a new climate-change treaty unless they know just how much carbon needs to be cut to keep people safe. Rockstrom's work delineates the limits to human growth - economically, demographically, ecologically - that we transgress at our peril...

Author: /time Magazine | Title: How Much Human Activity Can Earth Handle? | 9/23/2009 | See Source »

...remaining relatively still for a few hours, and the concrete stands that your posterior will be resting on during the game start to feel quite icy. The key is dressing in layers, making sure your cranium is covered, and wearing a good pair of gloves. The second thing to keep in mind is that you must have some type of Harvard apparel showing. A Lowell t-shirt underneath a sweatshirt and a winter coat does not count. Get a Harvard beanie or scarf, or wear a Harvard t-shirt or jersey over your jackets. The last thing to consider...

Author: By Ryan D. Smith, CONTRIBUTING WRITER | Title: Friday Night Lights | 9/23/2009 | See Source »

...heads the Institute for Quantitative Social Science, where Gorodentsev once served as executive director. “That makes it easier for her to figure out what they are about and develop different organizational structures, reporting lines, or communication strategies to solve the problem.”NOT JUST KEEPING THE SEAT WARMPrior to her July appointment as interim dean, Gorodentsev served as chief of staff to former Executive Vice President Edward C. Forst ’82, who left in August. Gorodentsev—who has worked at the University for more than ten years?...

Author: By Bonnie J. Kavoussi and Esther I. Yi, CRIMSON STAFF WRITERS | Title: Interim FAS Dean Assumes Host of Duties | 9/23/2009 | See Source »

...that. Being a car enthusiast at Harvard is an alienating experience, and certainly isn’t satisfied by the physical and social environment. I’ve spent more of my undergraduate career than is healthy scheming about how to get my car up here and how to keep it up here. I’ve spent much of the rest of the time suppressing the urge to bore my friends with long soliloquies on why turbocharging a daily driver is a bad idea from a reliability standpoint, or why power-to-weight ratio is way more important than...

Author: By David I. Fulton-Howard, CONTRIBUTING WRITER | Title: Revvin’ the Engine | 9/23/2009 | See Source »

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