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BIO 282, Week 1, Friday

by: Mel

BIO 282, Week 1, Friday BIO 282

Marketplace > Arizona State University > Biology > BIO 282 > BIO 282 Week 1 Friday
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About this Document

Lecture Notes and Video notes for Week 1 on Climate Change.
ConceptualApproachBioMajors II
Marushia, Wright
Class Notes
Biology, climate, change




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This 4 page Class Notes was uploaded by Mel on Monday August 22, 2016. The Class Notes belongs to BIO 282 at Arizona State University taught by Marushia, Wright in Fall 2016. Since its upload, it has received 12 views. For similar materials see ConceptualApproachBioMajors II in Biology at Arizona State University.

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Date Created: 08/22/16
Dr. Robin Marushia  LSC 422  Office hours:  10 A.M.­12 P.M.    Dr. Christian Wright  LSE B­74  Office hours:   Monday 9­10:30 A.M.  in LSE 207    If you have difficulties registering your clicker use this site:    BIO 282 Notes Week 1  Lecture 1: Climate Change  How we know Earth is warming and that we are to blame.    Humans have a big impact on their planet, Earth and play an integral part of it as well.    Scientific Theory  ­ Predicts outcomes for an infinite number of situations.  ­ Predicts outcomes that you would not have expected otherwise.    Understanding            ​explanation                                                  ​P​ ­­­­­­­­­­­­­­­­>                                                            ​THEORY                                                  ​     ←­­­­­­­­­­­­­­                                                                       ​validation      Objectives  ­ Distinguishing amongst a temperature, a normal temperature, and a temperature  anomaly.  ­ Use anomalies to infer how climates have changed recently.        Clicker Question #1:  Which statement reflects on your belief about Earth’s climate during your life?   A. Earth has not warmed.  B. Earth has warmed 0.5 degrees Celsius. F ​ ACT  C. Earth has warmed 1 degree Celsius.  D. Earth has warmed 2 degrees Celsius.  E. Don’t know enough to have an opinion.    How do we know?    Of course, studies have shown there is an occurrence of warming that’s been happening over  the past few years. The media has played a huge role in letting climate change be known and  putting out info about what it is and how we can lower the risks. Scientist try to make info about  climate change as precise as possible.    Clicker Question #2: The extreme temperatures of 2015 are sufficient evidence to conclude that  Earth is warming. True or False ? F ​ ALSE    The temperatures of the year 2015 alone would not be enough evidence to fall to such a  conclusion yet it could be a small step towards that conclusion.     Key point (always relates to objectives)  When something over space and time one must compare sufficient samples to quantify effects  accurately.    Normal temperatures (averaged over 30 years) Tell us what to expect each time of the year  without change.    Normal temperatures are calculated for each hour of each day of the year.    Why not just calculate single temperatures for each year ?  You wouldn’t be able to distinguish high and low temperatures that occur on a different days  throughout the year.    Clicker Question #3: When calculating a normal temperature, one should include many years as  possible. True or False ? ​FALSE    Clicker Question #4: Acclimation benefits an organism the most when the environment changes  quickly and the phenotype changes slowly ? True or False ? F ​ ALSE    Acclimation is the process of an individual adjusting to change in their environment.     Clicker Question #5: Although Earth warmed by 0.6 degrees Celsius in the 20th century some  areas could have cooled. True or False ? T ​ RUE    Temperature anomalies of 2015. Earth is warming at an accelerating pace.    What’s the big deal about a little warming?    Climate Change is a little piece of global change. Global change includes pollution impacts of  factories.    Temperature anomalies show that Earth has warmed at an accelerating pace.    Climate Change 101­ Bill Nye  Real and serious issue    Change in the Earth's overall temperature with massive and permanent ramifications.   ­ Caused by small variations in the earth’s orbit ­ Orbital variation.  Causes an abrupt increase in  the earths temperature.    ­ Last common occurrences of warming to be caused by Human activity. Increased our  consumption of natural resources due to technology, factories, etc. releases a lot of greenhouse  gases(mostly CO2) into the atmosphere. Stepped up our demand of burning fossil fuels.     ­ Climate changes biggest victims are the oceans in which provides 50% of the worlds oxygen.  Increased oceans temperatures by 0.3 degrees Fahrenheit since 1969. Devastating  consequences for life forces underwater.     ­ Ocean acidification a direct effect from carbon dioxide in the atmosphere reacting with salt  water. Ocean surface acidification has increased 30% and higher acid content means calcifying  species such as clams, any she'll life, putting the whole ocean food web at risk and there are 1  billion people that rely on the ocean for protein.     ­ Climate change has also caused the sea level to rise sea level has risen 6.7 inches since the  last decade. As the ocean gets warmer it swells causing glaciers and ice sheaths to melt. The  earth has lost 400 billions tons of ice/ glaciers which also filled up our oceans and causes  flooding of coastal regions.     ­ Climate change has increased extreme weather events such as heat waves and tornadoes  which had made recent occurrences through the media.     ­  Last century 1.2 to 1.4 degrees Fahrenheit warmer in the last century.    ­ Climate change can be stopped through recycling, using less vehicles that require gas,  conserve energy, planting trees, and many more ways.       Overall climate change is a real and serious issue and just how we caused the problem,  we can also find the solution to it as well.  


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