# How many times more CO2 does pork dinner emit to produce than steak dinner?

Math skills: fraction

Related Environmental issues:Climate change

How many times more CO2 does the pork dinner emit to produce than the steak dinner?

[A. 4 times more B. 1/4 times more]

8.18 / 36.45  = about 1/4

Source: Teletrac Navman, Food miles and CO2 emissions infographic

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# How much does California generate electricity from the sun?

Math skills: Percentage

Related Environmental issues: Renewable Energy

California’s solar panels generated 66 kwh of electricity per person in December, 2020.

The average Californian uses 186 kwh of electricity in a month at home. What percentage does electricity generated from the sun make up?

66 / 186 x 100 = 35(%)

Numbers used here….

•California generated 2,617 thousand megawatthours of electricity from solar panels in December 2020. (EPA Electric Power Monthly, Table 1.17.A)

•The population in California is 39.51 million.

•The average household electricity usage was 557kwh per month in California (California Public Utilities Commission)

•The average size of households in California was about 3 (Statista)

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