MYTUTOR SUBJECT ANSWERS

414 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

1 year ago

Answered by Faith, a GCSE Geography tutor with MyTutor

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

66 SUBJECT SPECIALISTS

£18 /hr

Olivia C.

Degree: BA Geography (Bachelors) - Exeter University

Subjects offered: Geography, Religious Studies

Geography
Religious Studies

“I'm a second year student studying BA Geography at the University of Exeter. I have always enjoyed learning and believe that every student has the potential to reach the highest possible grades with the correct help and guidance along ...”

MyTutor guarantee

£18 /hr

Paven U.

Degree: Politics, Philosophy and Law LLB (Bachelors) - Kings, London University

Subjects offered: Geography, Religious Studies+ 5 more

Geography
Religious Studies
Philosophy
Maths
English Literature
.LNAT.

“Hi! I'm a student from King's College London, studying Philosophy, Politics and Law. I've always had a love for learning, and enjoy finding new creative ways to approach learning different subjects and topics. I am very personable and...”

MyTutor guarantee

£18 /hr

Lewis H.

Degree: Climate Change (Masters) - University College London University

Subjects offered: Geography, Science+ 4 more

Geography
Science
Maths
Geology
Environmental Studies
Chemistry

“About Me Hey! I'm a current MSc student studying Climate Change at UCL. In June I graduated with a first class degree in Geology from Imperial College London. In my spare time I am a keen sportsmen and enjoy cricket and football. Exp...”

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 is the Pacific Ring of Fire?

How is globalisation managed?

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

What is globalisation and how does it affect us?

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