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Comment Re:If you haven't already, watch this video. (Score 1) 599

...a big problem with the Milankovich cycles is that they only explain a small part of the temperature changes. The rest is when CO2 changes kick in. Alley offered the following analogy: credit card interest lags debt. By the denialist logic, because interest lags debt, then I never have to worry about interest and the credit card company can never get me. However, a simple numerical model demonstrates that interest is the bigger cause of debt (even though it lags!!). So, it’s basic physics. The orbits initially kick off the warming, but the release of CO2 then kicks in and drives it.

source: http://climateprogress.org/2009/12/21/agu-richard-alley-explains-biggest-control-knob-carbon-dioxide-in-earths-climate-history/

Comment Re:If you haven't already, watch this video. (Score 1) 599

No, not really.

From an article that discusses the professor's presentation:

"But what do we say to people who say the lag proves current warming isn’t caused by CO2? We know that orbital changes (the Milankovitch cycles) kick off the ice ages – this was predicted 50 years before we had data (in the 1970s) to back it up. But temperature never goes far without the CO2, and vice versa, but sometimes one lags the other by about 2 centuries. And a big problem with the Milankovich cycles is that they only explain a small part of the temperature changes. The rest is when CO2 changes kick in. Alley offered the following analogy: credit card interest lags debt. By the denialist logic, because interest lags debt, then I never have to worry about interest and the credit card company can never get me. However, a simple numerical model demonstrates that interest is the bigger cause of debt (even though it lags!!). So, it’s basic physics. The orbits initially kick off the warming, but the release of CO2 then kicks in and drives it."

Read through the article, then watch the lecture. Professor Alley makes a compelling, accessible argument.

Comment If you haven't already, watch this video. (Score 3, Informative) 599

Professor Richard Alley recently gave a presentation called "The Biggest Control Knob: Carbon Dioxide in Earth’s Climate History," in which he makes the case that climate models simply don't work right unless you incorporate CO2.

The key point he makes is that there is a record dating back over 400 million years that provides proof that climate is sensitive to CO2. Doubling CO2 adds 3 degrees C to global temperature.

There are multiple lines of evidence to support climate sensitivity, and additional research is filling in what gaps might have been missing, and further strengthening the argument.

Comment Re:When... (Score 1) 599

There's a source that supports the position that "denialists" came up with the term "climate change:"

"Luntz advises that, “’Climate change’ is less frightening than ’global warming.’ ... While global warming has catastrophic connotations attached to it, climate change suggests a more controllable and less emotional challenge” (p. 142)."

source: http://www.ewg.org/node/8684

Frank Luntz is the Republican pollster and go-to person to craft Republican messaging.

It constantly amazes me that the people who complain about politicizing science, are the ones who are doing it the most.

Submission + - Obama Backs New Launcher and Bigger NASA Budget (sciencemag.org)

coop0030 writes: President Barack Obama will ask Congress next year to fund a new heavy-lift launcher to take humans to the Moon, asteroids, and the moons of Mars, ScienceInsider has learned. The president chose the new direction for the U.S. human space flight program Wednesday at a White House meeting with NASA Administrator Charles Bolden, according to officials familiar with the discussion. NASA would receive an additional $1 billion in 2011 both to get the new launcher on track and to bolster the agency’s fleet of robotic Earth-monitoring spacecraft.

Submission + - Not Just Drones; Military Aircraft Susceptible Too (wired.com) 2

azoblue writes: Tapping into drones’ video feeds was just the start. The U.S. military’s primary system for bringing overhead surveillance down to soldiers and Marines on the ground is also vulnerable to electronic interception, multiple military sources tell Danger Room. That means militants have the ability to see through the eyes of all kinds of combat aircraft — from traditional fighters and bombers to unmanned spy planes. The problem is in the process of being addressed. But for now, an enormous security breach is even larger than previously thought.
Open Source

Linux Kernel 2.6.32 Released 195

diegocg writes "Linus Torvalds has officially released the version 2.6.32 of the Linux kernel. New features include virtualization memory de-duplication, a rewrite of the writeback code faster and more scalable, many important Btrfs improvements and speedups, ATI R600/R700 3D and KMS support and other graphic improvements, a CFQ low latency mode, tracing improvements including a 'perf timechart' tool that tries to be a better bootchart, soft limits in the memory controller, support for the S+Core architecture, support for Intel Moorestown and its new firmware interface, run-time power management support, and many other improvements and new drivers. See the full changelog for more details."

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