4. trees

Image licensed under CC BY ND-2.0

CURRENT EVENT | SEPTEMBER 30, 2015

How Many Trees?

It may seem like planting a billion trees would help global warming because they absorb the greenhouse gas carbon dioxide during photosynthesis. But that would depend on the total number of trees on the planet, which was a number no one knew. Recently, researchers conducted a tree census that gathered the national forest inventories and tree information at a global scale. A previous estimate found 400 billion trees on Earth, but researchers discovered there were 390 billion in the Amazon basin alone. It took over two years to find a better estimate of the number of trees on the planet. Listen to this story to find out the results.

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Story Length: 3:18

Listen to the Story:

Listening Comprehension Questions

  • What was one of Malala Yousafzai’s first experiences with the dangers of religious extremism?
  • After miraculously surviving her attack, what has Malala focused her work on?
  • What is the message that Malala is trying to send to those in power?
  • What does Malala want to do in the future?
  • What are the goals of Malala’s mission to support girls?

Discussion Themes

  • What is your opinion on Malala’s message about the power of education?
  • Why do you think that ISIS might want to silence people like Malala?

Socrative users can import these questions using the following code: SOC-1234