In what ways have human activities contributed to global warming?

With this question it is important to focus on the human contribution to global warming rather than explaining why global warming is happening. 

Start your answer by explaining that carbon dioxide and methane are 'greenhouse gases'. This means that they absorb heat. Therefore more carbon dioxide or methane in the atmosphere means more heat will be absorbed and the earth will get warmer.

Humans have caused an increase in carbon dioxide in several different ways:

- Deforestation (the cutting down of trees) means less carbon dioxide is being absorbed by trees to be used in photosynthesis. 

- The burning of trees and fossil fuels such as coal releases extra carbon dioxide as they are stores (otherwise known as carbon dioxide 'sinks').

Human activities that cause an increase in methane include:

- Cattle farming

- The growing of rice in rice fields 

- Landfills; as the waste in landfills breaks down it releases mostly methane and carbon dioxide.

Kaat M. Mentoring -Medical School Preparation- tutor, Mentoring -Pers...

8 months ago

Answered by Kaat, an A Level Biology tutor with MyTutor

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


Naomi G. GCSE Biology tutor, GCSE Geography tutor, A Level Geography ...
View profile
£22 /hr

Naomi G.

Degree: Geography, Anthropology, and Theology (Bachelors) - Durham University

Subjects offered: Biology, Science+ 3 more

Human Biology

“Second year undergraduate at Durham University, looking to tutor at all school levels - have experience tutoring graduate entry level for medicine (Maths & Biology) and Geography at many levels.”

Amelia A. A Level Spanish tutor, GCSE Spanish tutor, A Level Biology ...
View profile
£20 /hr

Amelia A.

Degree: Medicine (Bachelors) - Bristol University

Subjects offered: Biology, Spanish


“About Me: ​​Hello! My name is Amelia. I am a second year Medicine student at the University of Bristol. I offer help with Sciences, in particularBiology. I have always had a passion for languages and I would be delighted to assist an...”

MyTutor guarantee

PremiumUmamah Y. A Level Biology tutor, A Level Chemistry tutor, GCSE Maths ...
View profile
£24 /hr

Umamah Y.

Degree: Medicine (Bachelors) - Leeds University

Subjects offered: Biology, Maths+ 1 more


“Hello!I'm Umamah, a first year medical student at the University of Leeds.I have a love for the logic, research and experimentation underpinning scientific knowledge, and enjoyed GCSE and A level science tremendously for that reaso...”

About the author

Kaat M. Mentoring -Medical School Preparation- tutor, Mentoring -Pers...
View profile
£20 /hr

Kaat M.

Degree: Medicine (Bachelors) - Leeds University

Subjects offered: Biology, Human Biology+ 6 more

Human Biology
Extended Project Qualification
-Personal Statements-
-Medical School Preparation-

“About meI am a medical student at Leeds University. I am very passionate about a whole range of subjects, including science subjects and other subjects such as English.I believe every subject can be interesting to learn and my main...”

You may also like...

Posts by Kaat

In what ways have human activities contributed to global warming?

What is the difference between diffusion and osmosis?

Other A Level Biology questions

What are the steps involved in the mark-release-recapture technique and which factors does it rely upon?

What are the methods of immobilising enzymes?

How is DNA packaged within Eukaryotic Cell nucleosomes

Why is our genetic code degenerate?

View A Level Biology tutors


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