Category: Type of environmental issue

By what percent has the global forest area per capita decreased?

Factful math: Grade 5th-6th

Math skills: Percent change

Related Environmental issues: Biodiversity & Deforestation

Global forest area per capita has decreased from 15,000m2 in 1960 to 5,000m2 in 2019. By what percent has the global forest area per capita decreased over the last 60 years?

A. 1%

B. 2%

C. 65%

D. 180%

Answer: C

(14,000 – 5,000)/ 14,000 x 100 = about 65%

Source: Hannay, J., 2022. New Study finds global forest area per capita has decreased by over 60%. IOP Publishing.

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For how many years was the global temperature in June 1℃ above the 20th century average?

June 2022 was incredibly warm, and the average global temperature in June was 6th warmest on record. The figure below shows global June temperature anomalies (with respect to the 20th century average). For how many years was the global temperatures in June 1℃ above the 20th century average?

A. 4

B. 7

C. 20

Answer: B

Source: NOAA (national Centers for Environmental Information), Climate Monitoring (Climate at a Glance)