You have new items in your feed. Click to view.
Question and answer
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?
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|
Asked 11/15/2012 7:45:54 PM
0 Answers/Comments
Get an answer
New answers

There are no new answers.


There are no comments.

Add an answer or comment
Log in or sign up first.
25,984,998 questions answered
Popular Conversations
How can data on one variable be displayed in ...
Weegy: Data on one variable can be displayed in categories using a - Pie chart. User: How do ...
8/30/2016 10:00:45 AM| 2 Answers
The basic unit of life.
Weegy: BASIC (an acronym for Beginner's All-purpose Symbolic Instruction Code) is a family of general-purpose, ...
8/30/2016 10:30:13 AM| 2 Answers
A "well-rounded" exercise program should include either anaerobic or ...
Weegy: false User: The ability of a muscle to exert force is: strength endurance fitness flexibility
8/30/2016 1:32:26 PM| 2 Answers
the transfer of thermal energy User: Mechanical waves use matter to ...
Weegy: Mechanical waves use matter to transfer energy. TRUE. User: A disturbance that transfers energy from ...
8/30/2016 9:47:47 PM| 2 Answers
5(x - 4) = 12
8/31/2016 9:49:58 AM| 2 Answers
Weegy Stuff
Points 809 [Total 880] Ratings 5 Comments 759 Invitations 0 Offline
Points 806 [Total 1640] Ratings 3 Comments 776 Invitations 0 Offline
Points 798 [Total 4053] Ratings 0 Comments 798 Invitations 0 Offline
Points 151 [Total 151] Ratings 0 Comments 151 Invitations 0 Offline
Points 58 [Total 285] Ratings 0 Comments 58 Invitations 0 Offline
Points 46 [Total 3862] Ratings 0 Comments 46 Invitations 0 Offline
Points 40 [Total 45] Ratings 0 Comments 0 Invitations 4 Offline
Points 15 [Total 15] Ratings 0 Comments 5 Invitations 1 Offline
Points 11 [Total 4491] Ratings 1 Comments 1 Invitations 0 Offline
Points 10 [Total 10] Ratings 1 Comments 0 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.