MYTUTOR SUBJECT ANSWERS

607 views

What is albedo and why is it important in climate change?

Albedo is the reflectivity of a surface. A surface that has a high albedo reflects a lot of solar radiation from the sun back into the atmosphere, whilst a surface that has a low albedo reflects little solar radiation, absorbing it instead.

White surfaces (such as ice) have high albedos, whilst black, dark surfaces (such as rocks) have low albedos. This is important in terms of climate change because ice has a high albedo, and so reflects most solar radiation back into the atmosphere, meaning the ice remains cold. However, due to increased sea surface temperatures, sea ice in areas such as the Arctic is melting. The removal of the sea ice results in further sea warming due to the fact that the sea has a lower albedo, and so absorbs more solar radiation from the sun, heating it. This positive feedback mechanism results in further sea ice loss, accelerating climate change.

Faith P. GCSE Geography tutor, 13 plus  Geography tutor

2 years ago

Answered by Faith, a GCSE Geography tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

93 SUBJECT SPECIALISTS

£18 /hr

Natalie C.

Degree: Geography (Bachelors) - Durham University

Subjects offered: Geography, Politics+ 5 more

Geography
Politics
History
Government and Politics
Environmental Studies
Economics
-Personal Statements-

“I am a Geography student from Durham University. I have a widespread interest in global processes spanning from the current political situation and climate change to more theoretical discussions on globalisation and equity. I trust I ...”

£18 /hr

Josh J.

Degree: Biomedical Science (Bachelors) - Sheffield University

Subjects offered: Geography, Biology

Geography
Biology

“I am a confident and diligent person who enjoys communicating and working within a team to find the best possible outcome for the student. I have a strong background in tutoring, and have worked within voluntary roles which aid those ...”

£22 /hr

Andrea P.

Degree: Geography (Bachelors) - Durham University

Subjects offered: Geography, Chemistry+ 1 more

Geography
Chemistry
Biology

“About me:I am an undergraduate student studying geography at Durham University. I have a real passion for my subject as well as knowledge in general. That was one of the reasons I choose to study geography since, due to its broad foc...”

About the author

Faith P.

Currently unavailable: no new students

Degree: BA Geography (Bachelors) - Exeter University

Subjects offered: Geography

Geography

“Passionate third year geography student at the University of Exeter who is looking to tutor those who are studying for 13 plus or GSCE geography.”

MyTutor guarantee

You may also like...

Other GCSE Geography questions

What are the main forms of river erosion?

What are the features in the lower course of a river?

What are the two main processes of glacial erosion and how do they work?

How to remember the difference between economic and physical water scarcity?

View GCSE Geography tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok