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"This is the fourth and last entry in a series that has examined the climate change disinformation campaign as an ethical matter. The purpose of this series has been to distinguish between responsible scientific skepticism, an approach to climate change science that should be encouraged, and the tactics of the climate change disinformation campaign, strategies deployed to undermine mainstream climate change science that are often deeply ethically offensive. "

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"The new science media ecosystem in the US and UK that we have mapped in this article – a mostly online environment that is deeply pluralistic, participatory and social – has presented challenges to the traditional professional role and working practices of the science reporter. In this environment, journalists have moved from their dominant historical role as privileged conveyors of scientific findings to an increasing plurality of roles that involve diverse, pluralistic and interactive ways of telling science news."

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"To conclude, a projection from 1981 for rising temperatures in a major science journal, at a time that the temperature rise was not yet obvious in the observations, has been found to agree well with the observations since then, underestimating the observed trend by about 30%, and easily beating naive predictions of no-change or a linear continuation of trends. It is also a nice example of a statement based on theory that could be falsified and up to now has withstood the test. The “global warming hypothesis” has been developed according to the principles of sound science."

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"This map shows you the delicate tracery of wind flowing over the US right now."

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"Despite the uncertainty in future climate-change impacts, it is often assumed that humans would be able to adapt to any possible warming. Here we argue that heat stress imposes a robust upper limit to such adaptation. Peak heat stress, quantified by the wet-bulb temperature TW, is surprisingly similar across diverse climates today. TW never exceeds 31 °C. Any exceedence of 35 °C for extended periods should induce hyperthermia in humans and other mammals, as dissipation of metabolic heat becomes impossible. While this never happens now, it would begin to occur with global-mean warming of about 7 °C, calling the habitability of some regions into question. With 11–12 °C warming, such regions would spread to encompass the majority of the human population as currently distributed. Eventual warmings of 12 °C are possible from fossil fuel burning. One implication is that recent estimates of the costs of unmitigated climate change are too low unless the range of possible warming can somehow be narrowed. Heat stress also may help explain trends in the mammalian fossil record. "

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All of this got Huber and Steven Sherwood, his colleague at Australia's University of New South Wales, to thinking: Economic considerations aside, they asked, how much warming can we physiologically tolerate? At what point does it get so bad that our bodies can no longer keep cool, so bad that we can no longer work or play sports or even survive for long out of doors? Will we flee for colder climes? Live underground like hobbits, surviving on cold fungus?

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"With missions scheduled throughout the year, 2012 is shaping up to be an extraordinary time for NASA’s Airborne Science Program and Earth system science research. Multiple aircraft and specialized instruments will operate in the United States, Europe, Asia and South America this year in support of studies conducted by NASA and the Earth science community, improving scientists' understanding of our planet."

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"Some states have introduced education standards requiring teachers to defend the denial of man-made global warming. A national watchdog group says it will start monitoring classrooms."

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"Forget "left-versus-right." Or even arguments over taxes. The centerpiece of our current Phase Three of the American Civil War is the all-out campaign to discredit science."

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