Home » Maths for Planet Earth » Changing Rates of Carbon Dioxide Emissions

# Changing Rates of Carbon Dioxide Emissions

The graph below shows how the rate of carbon dioxide emissions varies from 1800 to 2020. By using the appropriate lines of best fit from the graph,

a) Work out an estimate for the amount of carbon dioxide emitted between the years 1870 and 1930. Give your answer in kg, in standard form to 3 significant figures.

[4 marks]

b) Work out an estimate for the amount of carbon dioxide emitted between the years 1960 and 1990. Give your answer in kg, in standard form to 3 significant figures.

[4 marks]

c) Compare the amount of carbon dioxide released in the 60 years between 1870 and 1930 and in the 30 years between 1960 and 1990.

[2 marks]

## More Maths for Planet Earth

A Level
##### Monitoring Currents
In this question, all distances are measured in kilometres. 2 deep sea ocean current monitors, A and B, have position vectors (-1, 7, k)
GCSE
##### Annual Carbon Dioxide Emissions
The table below shows information about the annual CO2 emissions from 140 cities. a) Work out an estimate for the mean CO2 emissions across
GCSE
##### There Is No Planet B
Here is a pie chart taken from Mike Berners-Lee’s book There is no Planet B.  a) Calculate angle x. (shown on graph in the
A Level
##### A Total Emissions Goal
The warming caused by carbon dioxide (CO₂) emissions over any given period is proportional to the total amount of CO₂ emitted over that period.