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Global Climate Change

Global Climate Change

Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.

What is Climate?

What is Climate?

Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.

Fixed Action Patterns

Fixed Action Patterns

A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.

Action Potential

Action Potential

Neurons communicate by firing action potentials—the electrochemical signal that is propagated along the axon. The signal results in the release of neurotransmitters at axon terminals, thereby transmitting information to the nervous system. An action potential is a specific "all-or-none" change in membrane potential that results in a rapid spike in voltage.
Membrane potential in neurons
Neurons typically have a resting membrane potential of about -70 millivolts (mV). When they receive...

Action Potential

Action Potential

Neurons communicate by firing action potentials—the electrochemical signal that is propagated along the axon. The signal results in the release of neurotransmitters at axon terminals, thereby transmitting information to the nervous system. An action potential is a specific "all-or-none" change in membrane potential that results in a rapid spike in voltage.
Membrane potential in neurons
Neurons typically have a resting membrane potential of about -70 millivolts (mV). When they receive...

Action Potentials

Action Potentials

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Related Experiment Video

Updated: Jan 27, 2026

Using Learning Outcome Measures to assess Doctoral Nursing Education

Using Learning Outcome Measures to assess Doctoral Nursing Education

Published on: June 21, 2010

Nurses and Climate Action

Cara Cook¹, Shanda L Demorest, Elizabeth Schenk

¹Cara Cook is the climate change program coordinator for the Alliance of Nurses for Healthy Environments, Mount Rainier, MD; Shanda L. Demorest is a clinical assistant professor at the University of Minnesota School of Nursing, Minneapolis, and a consultant at Health Care Without Harm; and Elizabeth Schenk is the Providence-WSU nurse scientist/sustainability coordinator at Providence St. Patrick Hospital in Missoula, MT, and an assistant research professor at the Washington State University College of Nursing in Spokane. Contact author: Elizabeth Schenk, elizabeth.schenk@providence.org. The authors have disclosed no potential conflicts of interest, financial or otherwise.

The American Journal of Nursing

|March 22, 2019

Summary

No abstract available in PubMed .

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