Notice: Payments for answers will end 4/10/2017. Click for more info.
You have new items in your feed. Click to view.
Question and answer
Q: Choose an anthropogenic issue affecting the global oceans and summarize it for the class. Why is it important? How have humans caused or exacerbated this issue? What are the effects of this issue?
A: Climate change feedback is important in the understanding of global warming because feedback processes may amplify or diminish the effect of each climate forcing, and so play an important part in determining the overall climate sensitivity. [ Feedback in general is the process in which changing one quantity changes a second quantity, and the change in the second quantity in turn changes the
first. Positive feedback amplifies the change in the first quantity while negative feedback reduces it.[1] By definition, forcings are external to the climate system while feedbacks are internal; in essence, feedbacks represent the internal processes of the system. Some feedbacks may act in relative isolation to the rest of the climate system; others may be tightly coupled; hence it may be difficult to tell just how much a particular process contributes.[2] Forcings, feedbacks and the dynamics of the climate system determine how much and how fast the climate changes. The main positive feedback in global warming is the tendency of warming to increase the amount of water vapor in the atmosphere, which in turn leads to further warming.[3] The main negative feedback comes from the Stefan–Boltzmann law, the amount of heat radiated from the Earth into space changes with the fourth power of the temperature of Earth's surface and atmosphere. Some observed and potential effects of global warming are positive feedbacks, which contribute directly to further global warming. The Intergovernmental Panel on Climate Change's (IPCC) Fourth Assessment Report states that "Anthropogenic warming could lead to some effects that are abrupt or irreversible, depending upon the rate and magnitude of the climate change."[4] ]
Expert answered|markworley|Points 340|
Question
Asked 11/15/2012 7:45:54 PM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
26,806,727 questions answered
Popular Conversations
What does throttle mean?
4/16/2018 10:25:30 AM| 5 Answers
Error 401- Unauthorized
4/13/2018 4:59:54 AM| 3 Answers
The science of the creation of maps and charts is called ...
Weegy: The science of the creation of maps and charts is called cartography. User: Which of the following would ...
4/13/2018 8:36:16 AM| 3 Answers
What’s 307,495 rounded to the nearest thousand
Weegy: 307,495 rounded to the nearest thousand is 307,000. User: Which of the following statements about the number ...
4/20/2018 6:40:52 PM| 2 Answers
What's one way we can check our answer to 2 ×10 = 20? A. 2 ÷ ...
Weegy: A throttle body is part of the air intake system that helps control the amount of air that gets into the engine. ...
4/13/2018 7:46:31 AM| 2 Answers
Which sentence does not contain misplaced or dangling modifiers? ...
Weegy: The sentence that does not contain misplaced or dangling modifier is:
4/15/2018 8:58:11 PM| 2 Answers
Weegy Stuff
S
P
L
P
P
P
P
Points 187 [Total 613] Ratings 0 Comments 187 Invitations 0 Offline
S
R
L
R
Points 170 [Total 308] Ratings 0 Comments 20 Invitations 15 Offline
S
1
L
L
P
R
P
L
P
P
R
P
R
P
R
Points 153 [Total 12956] Ratings 0 Comments 143 Invitations 1 Offline
S
Points 51 [Total 51] Ratings 0 Comments 31 Invitations 2 Offline
S
Points 50 [Total 50] Ratings 0 Comments 0 Invitations 5 Offline
S
P
L
Points 35 [Total 126] Ratings 0 Comments 35 Invitations 0 Offline
S
Points 30 [Total 35] Ratings 3 Comments 0 Invitations 0 Offline
S
Points 11 [Total 11] Ratings 0 Comments 11 Invitations 0 Offline
S
Points 10 [Total 10] Ratings 1 Comments 0 Invitations 0 Offline
S
Points 4 [Total 4] Ratings 0 Comments 4 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.