Day 140

Hi class,

Don't forget to comment below by 8 am on Friday.

We will finish going over the homework problems on Friday, and your quiz on chapter 11 will be administered on Monday.

Please check the blog tomorrow for your assignment that will be due on Tuesday.

Day 137

Hi class,

Don't forget to comment below by 8 am tomorrow.

The homework for chapter 11 is due on Thursday, and the homework problems are 9, 11, 15, 17, 19, 21, 23, 25, 33, 34, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 54, 55, 57, 58, 59, and 61. If we do not have class, drop the homework on my desk before lunch.

Day 136

Hi class,

Don't forget to comment below by 8 am tomorrow.

The homework for chapter 11 will be due on Thursday. The homework problems to this point are 9, 11, 15, 17, 19, 21, 23, 25, 33, 34, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 54, and 55.

Day 134

Hi class,

Don't forget to comment below by 8 am tomorrow.

The homework for chapter 11 will be due on Tuesday.  The homework problems so far are 9, 11, 15, 17, 19, 21, 23, 25, 33, 34, 35, and 37.

Day 133

Hi class,

Don't forget to comment below by 8 am tomorrow.

Read sections 3 and 4 of chapter 11 tonight.

Day 132

Hi class,

Don't forget to comment below by 8 am tomorrow.

Read sections 1 and 2 of chapter 11 for class tomorrow.

Day 131

Hi class,

Don't forget to comment below by 8 am tomorrow.

Bring your chapter 18 notes and reading to class tomorrow.

Day 130

Hi class,

Don't forget to comment below by 8 am tomorrow.

There are no new assignments for tonight. Make sure that you bring your chapter 18 reading and notes to class tomorrow.

Day 129

Hi class,

Don't forget to comment below by 8 am tomorrow.

Your assignment this weekend is to email me a key to your homework problems by 10 pm on Sunday.

Day 128

Hi class,

Don't forget to comment below by 8 am tomorrow.

Ben and Shaji will give their presentation on sections 3 and 4 of chapter 18. I would recommend reading these sections before class tomorrow.

In class today, Shaji asked why the ozone hole formed over Antarctica. Essentially, atmospheric winds blow the CFCs around the globe, but the atmosphere above Antarctica hosts ideal conditions for the breakdown of CFCs, which leads to the breakdown of ozone. For a more detailed answer, please click on the following link: https://www.nsf.gov/about/history/nsf0050/arctic/ozone.htm

I mentioned in class that if the Montreal Protocol had not been enacted, the ozone layer would have completely deleted by 2065. Here is a cool video that models what will happen vs. what would have happened: https://www.youtube.com/watch?v=5MeKqJrMrQI. The left planet shows what will happen, whereas the right planet shows what would have happened if the Montreal Protocol had not been enacted. The darker blue color represents areas of complete ozone depletion.

Day 127

Hi class,

Don't forget to comment below by 8 am tomorrow.

Mariah and Symphony will present section 2 during class tomorrow. I recommend reading section 2 of chapter 18 before class.

Day 126

Hi class,

Don't forget to comment below by 8 am tomorrow.

Send me your final presentation and your ten homework problems by 10 pm tonight. I recommend reading section 1 of chapter 18 for class tomorrow. Cole and Haley will present section 1. Everyone else needs to be prepared to take notes and ask questions.