MYTUTOR SUBJECT ANSWERS

698 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

99 SUBJECT SPECIALISTS

£18 /hr

Odette F.

Degree: Biological Sciences (Bachelors) - Exeter University

Subjects offered:Geography, Biology+ 1 more

Geography
Biology
-Personal Statements-

“ABOUT ME: I am a 2nd Year Biology Student at the University of Exeter. Science as a whole, is a subject I am hugelyenthusiastic about and I would love to share this eagernesswith you! Having spent some of my Gap Year teaching abroad, I...”

£20 /hr

Philip B.

Degree: Physical Geography (Masters) - Durham University

Subjects offered:Geography, German

Geography
German

“Hi! I am a Physical Geography student at Durham University. I have always had a passion for this subject, and love how versatile it is for teaching skills in a variety of subjects. Hopefully I will be able toinstill this in you as wel...”

£18 /hr

Sam C.

Degree: Biological Sciences (Bachelors) - Oxford, The Queen's College University

Subjects offered:Geography, Physics+ 1 more

Geography
Physics
Biology

“I am currently studying Biological Sciences at the University of Oxford. I have always been incredibly interested by all forms of science, and through my years at school it became apparent, that my main passion was biology. This is why...”

MyTutor guarantee

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 names of 2 features found as part of a Limestone Pavement?

Use one or more examples to explain why people migrate within the European Union.

What are some examples of hard vs. soft engineering?

What is an ecosystem?

View GCSE Geography tutors

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

mtw:mercury1:status:ok