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Evolution: Extinction: What Killed the Dinosaurs? - PBS

And so what of the future? Over the last few years atmospheric methane concentrations have hardly changed. This is clearly good news for those worried about continued greenhouse warming, but until scientists understand why, there is no assurance that increased emissions won't resume. This stands as a clear reminder that we still do not know everything we need to about methane. Many of the anthropogenic sources of methane such as irrigation, mining, farm practices, etc. are however relatively cheap and straightforward to control. For example, New Zealand's primary contribution to greenhouse gas emissions is from sheep digestive processes, and scientists there are experimenting with changes to feed that have the potential to reduce methane production enormously. Similarly, improved capture of methane released in mining and oil operations is providing a cleaner fuel source and increasing profits for the companies concerned.

LIPs may result from impact-induced volcanism following large meteorite impacts on Earth.

What has fueled the rapid rise of methane from an obscure trace gas to a major factor in past, present and future climate change? As is usual in science, it is the conflation of multiple lines of evidence, that only when taken together do the connections and possible feedbacks seem obvious.

Academic Word Lists - University of Nottingham

Hypothesis Journal » Rewiring the stress response: A …

Thus at present, both the volcanic and meteorite impact hypotheses are both viable mechanisms for producing the Cretaceous mass extinction, although the latter is more popular.


In describing the conceptual basis of a stress intervention method, Emotional Brain Training (EBT), a program which integrates advances in neuroscience and stress physiology, we propose a new paradigm for health care. Many health care treatments focus on managing symptoms of stress-related disorders. In modern society stress is primarily psychological in nature and in its chronic form, the result of (non-homeostatic) neural circuits that amplify and prolong stress. The result is cognitive, emotional, behavioral and physiologic dysregulation resulting in wear and tear (allostatic load). The effectiveness of treating any one stress symptom is likely decreased because of the persistent allostatic state. Emerging understanding of neuroplasticity suggests that this circuitry is capable of change. EBT is based on the repeated use of techniques that mirror secure attachment and optimal self-regulatory processing to alter allostatic circuits through the process of reconsolidation, therefore decreasing allostatic load. This results in an improved state of well-being. We hypothesize that decreased dominance of allostatic neuronal circuits leads to improved health outcomes, offering a new paradigm for health care.

The Customer Discovery Handbook - Alex Cowan

News that impacts your health that you may not have heard from other media sources!

Kenya: Patient Safety Impact Evaluation (KEPSIE)
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