Grist | Topics | 9 Results

RESULTS		Results 1 – 9 of 9
Headline	Author	Published	Section
The dogma whisperer A possible consensus perspective on the tax vs. cap debate	Ken Johnson	02 Jul 2008	Gristmill
In his recent Congressional testimony, James Hansen talked about a 'perfect storm' of climatological tipping points that may soon converge to yield global cataclysm. But another kind of perfect storm is brewing: a technology storm that could rapidly displace fossil fuels and restore global climate sustainability. Effective regulatory policy could provide the kind of incentives and stable investment climate that are needed to facilitate the clean-ener ...
Topics: climate, climate change impacts, climate science, greenhouse-gas emissions, James Hansen (all these topics)

Hansen for the plebes A non-technical piece on climate science	Joseph Romm	29 Apr 2008	Gristmill
The nation's top climate scientist, James Hansen, has just published a general-audience article, 'Tipping Point' [PDF], in State of the Wild 2008-2009 from Island Press. It is well worth sending to folks who don't like all the math. His key points: We are at the tipping point because the climate state includes large, ready positive feedbacks provided by the Arctic sea ice, the West Antarctic ice sheet, and much of Greenland's ice. ... Prior major warmings in Ear ...
Topics: climate, extinction, greenhouse-gas emissions, James Hansen (all these topics)

Power Up Rise in U.S. power plant emissions outpaced electricity demand in 2007		19 Mar 2008	News
Posted at 12:11 PM on 19 Mar 2008 Carbon dioxide emissions from U.S. power plants rose 2.9 percent from 2006 to 2007, according to data analysis by the Environmental Integrity Project. That's the largest annual increase in nine years and outpaced demand for electricity, according to the report. And the impact will last well beyond a year, warns EIP Director Eric Schaeffer: "Because CO2 has an atmospheric lifetim ...
Topics: climate, energy, fossil fuels, greenhouse-gas emissions, James Hansen, news (all these topics)

Dr. Hansen to Dr. Merkel Carbon is forever -- so ban new traditional coal plants now	Joseph Romm	24 Jan 2008	Gristmill
Another clear statement (PDF) from the nation's top climate scientist on the scientific need for a dramatic change in global coal policy -- this time addressed to the German chancellor, a fellow physicist. He points out that: The fact that energy and climate advisors, in Germany, the United States, and elsewhere, do not understand the problem is starkly illustrated by repetition of goals to reduce CO2 emissions by a percentage (say 40% by 2020, 80% by 2050, or o ...
Topics: Angela Merkel, climate, climate science, energy, greenhouse-gas emissions, international politics, James Hansen, politics (all these topics)

Parting company with McKibben and, maybe, Hansen What is the safe upper limit for atmospheric CO2?	Joseph Romm	31 Dec 2007	Gristmill
The nation's top climate scientist, NASA's James Hansen, apparently now believes 'the safe upper limit for atmospheric CO2 is no more than 350 ppm,' according to an op-ed by the great environmental writer Bill McKibben. Yet while preindustrial levels were 280, we're now already at more than 380 and rising 2 ppm a year! Like many people, in the 1990s I believed 550 was the target needed to avoid climate catastrophe -- but now it's clear that: 550 ppm would lea ...
Topics: Bill McKibben, climate, climate science, greenhouse-gas emissions, James Hansen (all these topics)

Dear Prime Minister, Dear Chancellor A letter from James Hansen pleads for action on coal-fired power plants	Guest author	09 Dec 2007	Gristmill
The following is a draft letter from noted climate scientist James Hansen to UK Prime Minister Gordon Brown, on the subject of proposed new coal-fired power plants. (A similar letter is in the works to German Chancellor Angela Merkel.) The author would appreciate feedback. ----- Dear Prime Minister Brown, Your leadership is needed on a matter concerning coal-fired power plants in your country, a matter with global ramifications, as I will clarify. For the sake ...
Topics: climate, greenhouse-gas emissions, James Hansen (all these topics)

More of NASA's James Hansen on Old King Coal How coal CO2 is different from oil CO2	Joseph Romm	24 Jul 2007	Gristmill
Our top climate scientist has sent out a really, really long email (where does he find the time?), mostly discussing comments on his recent essay on coal. I think Hansen is the clearest thinker on climate among the top scientists in the field, so I will reprint the email, breaking it up into several postings. The first one addresses "Coal-CO2 versus Oil-CO2": My statement that releasing a coal-CO2 molecule into the air is more harmful than setting ...
Topics: climate, coal, energy, greenhouse-gas emissions, James Hansen, oil (all these topics)

Peak oil and climate change New Hansen paper	John McGrath	22 May 2007	Gristmill
Today the Oil Drum linked to a James Hansen released paper analyzing the impact of peak oil, peak gas, and peak coal on the likely emissions of carbon. Hansen notes that most of our emissions scenarios have thus far failed to account for whether the carbon will even be there to burn. Plenty of graphy goodness, but what I took away was this: There's just enough oil and gas left in the ground to take us up to, or maybe a bit over, the 450 parts per million of CO2 that ...
Topics: climate, coal, energy, greenhouse-gas emissions, James Hansen, natural gas, oil (all these topics)

Sir Richard to the Rescue? Virgin founder Branson offers $25 million atmosphere-scrubbing prize		09 Feb 2007	Daily Grist
Sir Richard to the Rescue? Virgin founder Branson offers $25 million atmosphere-scrubbing prize Virgin mogul Sir Richard Branson is dangling $25 million for anyone who can figure out how to scrub vast amounts of greenhouse gases from the atmosphere. The Virgin Earth Challenge -- which Branson announced today with the ubiquitous Al Gore by his side and which we're pretty sure was also ...
Topics: climate, greenhouse-gas emissions, James Hansen, news, Richard Branson (all these topics)

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