Hazardous Earth - Climate - how human activities cause climate change

Question 1

What are 3 human activities that produce greenhouse gases

Answer 1

Energy : Most of our energy is gained through burning fossil fuels

Industry : the increased demand of consumer goods requires more energy

Transport: almost all transport relies on burning fossil fuels in some way

Farming : Mechanisation in farming means more fuel is burnt

Question 2

What is the greenhouse effect?

Answer 2

the natural effect which keeps the earth warm

Question 3

what do measurements of average global temperatures show

Answer 3

there has been a steep rise from the 1950s to the present

Question 4

what do long term measurements of the sea level show

Answer 4

there has been a steep rise from the 1950s to the present

Question 5

What is thermal expansion?

Answer 5

As water gets warmer it expands

Question 6

What is sea level rising caused by?

Answer 6

Melting glaciers, ice caps and by thermal expansion