Home » Maths for Planet Earth » Decreasing Fish Stocks

# Decreasing Fish Stocks

Global warming will affect the world’s annual fishing catch.

In a world heated by a global warming of 2°C, the annual fishing catch will decrease by 3.3 million tonnes.

In a world heated by a global warming of 1.5°C, the annual fishing catch will decrease by 1.5 million tonnes.

Express the reduction of the annual fishing catch in a world warmed by 2°C as a fraction of the reduction in annual fishing catch in a world warmed by 1.5°C.

Give your answer in its simplest form.
[2 marks]

## More Maths for Planet Earth

A Level
##### EV Increase
A country decides to subsidise the purchase of electric vehicles, causing more people to buy them. Initially, the country used an equivalent of 56
A Level
##### The Swelling Sahara
Human-induced global warming is causing deserts such as the Sahara to increase in surface area. In 1950 the area of the Sahara Desert was
GCSE
##### Calculating Sea Level Rise
The table shows information about sea level rise due to human-induced climate change. (mm = millimetres). Sea level rise in 2006 (mm) Sea level
GCSE
##### 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