Read the initial part of a paper presented by Julia Jacobs based on a discussion on ABC News by meteorologist Ginger Zee.
The report discusses how melting ice will have catastrophic effects on the world.
Read and discuss why the ice melting allows for a greater warming due to loss of reflection and increase in dark water absorption of heat energy.
Session Minutes
60
Minutes Student Attended
30
Lesson Comments
Due to a misunderstanding regarding Aydens' earlier classes, he was not on line until 10:30.
Complete viewing the lecture dealing with the measurement of temperature change, greenhouse gases concentration changes over thousands of years, and the charted relationship between the concentration increases and the melting ice caps and ice glaciers.
Discussion of new methods of measurements and the use of drones to photograph the shrinking ice caps-
Can we stop global warming is the discussion for today. What can we do to decrease the effects of global warming?.
The answer boils down to don't use as much of the "stuff" that creates greenhouse gases.
Discussed and outlined a series of specific and general activities which can be utilized to decrease greenhouse gases.
Discussion of an article "Is global warming a real problem?"-
The discussion involved reasons and arguments proposed by some people, scientists included, who feel that global warming is not happening at all.
These involved thoughts revolving around not enough long-term historical data, incorrect interpretation of the data, and arguments presented that the increase in global temperatures we are seeing could be a natural climate shift.
They also argue that the economic damage will be far more damaging to humans than any effects of global warming.
Assignment
research project
Session Minutes
60
Minutes Student Attended
60
Lesson Comments
Ayden was given another research project to complete for next week. He had not done the last one.
We did comment on the arguments presented, and weighed their validity
Discussion of the effect climate change has on ecosystems.
The biotic factors were considered and not the abiotic factors.
Outline how an ecosystem can gradually change from one form, example a tundra, into a second form, such as a forest.
The overall ability of organisms to adapt or become extinct included. A stress is placed on the fact that all ecosystems are inter related to each other
Effects of global warming: Seasons and Ecosystems
Discuss how not all changes brought about by global warming need be harmful.
Some changes which have an effect on four season ecosystems can be beneficial, the growing season would be longer with more precipitation.
Discuss the advantages and disadvantages of all electric vehicles.
Session Minutes
60
Minutes Student Attended
30
Lesson Comments
Ayden was in person today, but was stuck at the bridge
Discuss the effects of global warming on the sea level.
Introduce how the loss of glaciers and ice shelves could accelerate warming because less of the Sun's energy would be reflected away.
Immediate result of melting glaciers would be a rise in sea level.
Discuss how water vapor is the most abundant greenhouse gas that is not a result of man-made emissions.
Show how water vapor increases will increase condensation, the formation of clouds and increased reflection of heat energy.
Discuss Earth's main ice covered landmass, Antarctica, at the South Pole.
Discuss how and why the melting of the ice covering would cause severe increases in ocean water.
Session Minutes
60
Minutes Student Attended
60
Lesson Comments
Ayden was given an alternate research assignment which is due next Monday.
Discuss what will happen if the planet actually warms up a few degrees.
Review carbon dioxide and methane level concentration increases over the last 100 years.
Relate an average drop of 5 degrees over a period of 10,000 years can and has caused an ice age; so what will happen if the Earth's average temperature increases a few degrees in only 100 years?
Discuss the effect of glacial and ice shelf melting on global warming.
Assignment
Research paper due next Mon.
Session Minutes
60
Minutes Student Attended
60
Lesson Comments
A research report; is global warming irreversible?" is due by next Monday
Comprehensive review both verbally online and through a comprehensive video.
In depth explanation as to how the greenhouse gases cause a rise in the temperature, by increasing the atmospheric level above the Earth and that the gases will continue to reflect and radiate.
Discuss how nitrous oxide is another important greenhouse gas.
Though it is not released by human activity in the same quantity as carbon dioxide, it absorbs about 270 times as much heat energy.
The use of large amounts of nitrogen fertilize on crops releases nitrous oxide in great quantities.
Another gas which exhibits greenhouse effect is methane. Discuss how it is the main component of natural gas and is produced through the decomposition of organic matter, by extracting from coal, from livestock, from bacterial action on rice paddies, and the decomposition of garbage.
View methane ice locked under the oceans