Like artificial trees? The effect of framing by natural analogy on public perceptions of geoengineering

The linguistic frames used to describe new areas of science and technology can have a powerful effect on the way that those technologies are perceived by the general public. As geoengineering continues to attract scholarly and policy interest, a number of frames have emerged in the scientific, political and media discourse. In the current paper, we provide an empirical test of one of the most prevalent framing devices: describing geoengineering technologies by analogy to natural processes. In an online experiment with members of the UK public, participants who read a description of geoengineering technologies as analogous to natural processes were more likely to support geoengineering as a response to climate change. In addition, participants’ views about the relationship between geoengineering and nature strongly predicted support for geoengineering. Our findings suggest that communicators should be cautious when using natural analogies to communicate about geoengineering with the general public, as frame choice is likely to influence public attitudes and potentially convey undue positivity

Public engagement with climate change: the role of human values

A long history of interdisciplinary research highlights the powerful role that human values play in shaping individuals' engagement with environmental issues. That certain values are supportive of proenvironmental orientation and behavior is now well established. But as the challenge of communicating the risks of climate change has grown increasingly urgent, there has been a rise in interest around how values shape public engagement with this issue. In the current paper, we review the growing body of work that explores the role of human values (and the closely related concept of cultural worldviews) in public engagement with climate change. Following a brief conceptual overview of values and their relationship to environmental engagement in general, we then provide a review of the literature linking value-orientations and engagement with climate change. We also review both academic and ‘gray’ literature from civil society organizations that has focused on how public messages about climate change should be framed, and discuss the significance of research on human values for climate change communication strategies

The Neural Substrates of Infant Sleep in Rats

Sleep is a poorly understood behavior that predominates during infancy but is studied almost exclusively in adults. One perceived impediment to investigations of sleep early in ontogeny is the absence of state-dependent neocortical activity. Nonetheless, in infant rats, sleep is reliably characterized by the presence of tonic (i.e., muscle atonia) and phasic (i.e., myoclonic twitching) components; the neural circuitry underlying these components, however, is unknown. Recently, we described a medullary inhibitory area (MIA) in week-old rats that is necessary but not sufficient for the normal expression of atonia. Here we report that the infant MIA receives projections from areas containing neurons that exhibit state-dependent activity. Specifically, neurons within these areas, including the subcoeruleus (SubLC), pontis oralis (PO), and dorsolateral pontine tegmentum (DLPT), exhibit discharge profiles that suggest causal roles in the modulation of muscle tone and the production of myoclonic twitches. Indeed, lesions in the SubLC and PO decreased the expression of muscle atonia without affecting twitching (resulting in “REM sleep without atonia”), whereas lesions of the DLPT increased the expression of atonia while decreasing the amount of twitching. Thus, the neural substrates of infant sleep are strikingly similar to those of adults, a surprising finding in light of theories that discount the contribution of supraspinal neural elements to sleep before the onset of state-dependent neocortical activity

A probabilistic analysis of argument cogency

This paper offers a probabilistic treatment of the conditions for argument cogency as endorsed in informal logic: acceptability, relevance, and sufficiency. Treating a natural language argument as a reason-claim-complex, our analysis identifies content features of defeasible argument on which the RSA conditions depend, namely: change in the commitment to the reason, the reason’s sensitivity and selectivity to the claim, one’s prior commitment to the claim, and the contextually determined thresholds of acceptability for reasons and for claims. Results contrast with, and may indeed serve to correct, the informal understanding and applications of the RSA criteria concerning their conceptual dependence, their function as update-thresholds, and their status as obligatory rather than permissive norms, but also show how these formal and informal normative approachs can in fact align