Also published at Skeptical Science This is a climate model: T = [(1-α)S/(4εσ)]1/4 (T is temperature, α is the albedo, S is the incoming solar radiation, ε is the emissivity, and σ is the Stefan-Boltzmann constant) An extremely simplified climate model, that is. It’s one line long, and is at the heart of every computer [...]
Posts Tagged ‘arctic’
How do climate models work?
Posted in Science Lessons, tagged arctic, atmosphere, cesm, chemistry, climate change, climate models, education, global warming, IPSL, mathematics, NOAA, ocean, physics, programming, science on January 20, 2012 | 29 Comments »
The Pitfalls of General Reporting: A Case Study
Posted in Media and the Public, tagged arctic, atmosphere, canada, canadian press, CFCs, climate change, communication, education, environment, global warming, journalist, manitoba, media, nature, ozone, reporter, science, stratosphere, troposphere, weather, winnipeg free press on October 2, 2011 | 15 Comments »
Today’s edition of Nature included an alarming paper, indicating record ozone loss in the Arctic due to an unusually long period of cold temperatures in the lower stratosphere. On the same day, coverage of the story by the Canadian Press included a fundamental error that is already contributing to public confusion about the reality of [...]
News
Posted in News and Reports, Research Blogging, tagged AGU, alberta, arctic, british columbia, climate change, environment, global warming, jack pine, lodgepole pine, mountain pine beetle, science, sea ice on September 21, 2011 | 9 Comments »
Two pieces of bad news: Mountain pine beetles, whose range is expanding due to warmer winters, are beginning to infest jack pines as well as lodgepole pines. To understand the danger from this transition, one only needs to look at the range maps for each species: A study from Molecular Ecology, published last April, has the [...]
Open Thread
Posted in Open Threads, tagged arctic, australia, carbon tax, climate change, environment, gillard, global warming, mann, PNAS, rahmstorf, sea ice, sea level, vermeer on July 20, 2011 | 22 Comments »
Again, I am getting sloppy on publishing these regularly… Possible topics for discussion: The Arctic sea ice extent is currently tracking below 2007, which had the lowest minimum extent on record (occurs in September). Martin Vermeer, a frequent commenter here on ClimateSight, recently published a study in PNAS, along with some of the biggest names [...]
In Other News…
Posted in How Science Works, tagged arctic, climate change, global warming, hansen, nasa, winter on March 29, 2011 | 7 Comments »
The Arctic is getting so warm in winter that James Hansen had to add a new colour to the standard legend - pink, which is even warmer than dark red: The official NASA maps – the ones you can generate yourself – didn’t add this new colour, though. They simply extended the range of dark red [...]
The Pendulum
Posted in Mitigation and Policy, tagged al gore, an inconvenient truth, arctic, canada, carbon dioxide, climate change, climategate, copenhagen, debate, democrat, denial, environment, global warming, greenhouse effect, greenhouse gases, human rights, hurricane katrina, journalism, kyoto, media, obama, politics, republican, risk management, science, skeptic, Stephen Harper, sustainability, swifthack, united states on January 31, 2011 | 7 Comments »
Cross-posted from NextGen Journal A few years ago, climate change mitigation became a major political issue. Before 2005, governments certainly knew that human-caused climate change was a serious problem – but the public knew next to nothing about it, so there was no incentive to act. However, between 2005 and 2007, a perfect storm of [...]
What’s the Warmest Year – and Does it Matter?
Posted in News and Reports, Science Lessons, tagged arctic, climate change, education, environment, giss, global warming, hansen, met office, nasa, NOAA, science, statistics on January 26, 2011 | 4 Comments »
Cross-posted from NextGenJournal Climate change is a worrying phenomenon, but watching it unfold can be fascinating. The beginning of a new year brings completed analysis of what last year’s conditions were like. Perhaps the most eagerly awaited annual statistic is global temperature. This year was no different – partway through 2010, scientists could tell that [...]
“It’s Just a Natural Cycle”
Posted in Science Lessons, tagged arctic, carbon dioxide, climate change, education, el nino, enso, environment, global warming, greenhouse effect, greenhouse gases, ice age, little ice age, media, medieval warm period, natural cycle, ocean, pdo, science, skeptical science, sun, volcanoes on January 11, 2011 | 10 Comments »
My second rebuttal for Skeptical Science. Thanks to all the folks who helped to review it! Further suggestions are welcome, as always. -Kate “What if global warming is just a natural cycle?” This argument is, perhaps, one of the most common raised by the average person, rather than someone who makes a career out of [...]
Snowstorms and Sea Ice
Posted in Science Lessons, tagged arctic, asia, climate change, cold, environment, europe, global warming, greenhouse effect, media, NAO, science, sea ice, snow, united states, winter on January 11, 2011 | 5 Comments »
Cross-posted from NextGen Journal “That’s some global warming”, Fox News proudly announced. “Rare winter storm dumps several inches of snow across South.” It’s cold outside, and/or it’s snowing, so therefore global warming can’t be happening. Impeccable logic, or rampant misconception? It happened last winter, and again so far this season: unusual snow and extreme cold [...]
Party Line
Posted in Mitigation and Policy, News and Reports, tagged al gore, arctic, carbon dioxide, climate change, denial, environment, global warming, greenhouse effect, greenhouse gases, jim demint, john mccain, john raese, ken buck, marco rubio, pat toomey, politics, rand paul, republican, ron johnson, roy blunt, science, senate, sharron angle, skeptic, statements, united states on September 19, 2010 | 19 Comments »
Brad Johnson from The Wonk Room recently released a comprehensive list of what Republican contenders for the U.S. Senate understand about climate change, inferred from their public statements. The result? 47 of the 48 deny the existence of anthropogenic climate change and/or oppose mitigating action to curb greenhouse gas emissions. Take a look – many [...]
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