Title: Green cryptocurrencies - Reading comprehension
Course: AMK-valmennus 2, englanti, 2 osp > Section: Reading comprehension

Read the article Are carbon offsets the key to green cryptocurrencies? (Lamba A (2022) Are carbon offsets the key to green cryptocurrencies? PLOS Sustain Transform 1(3): e0000002. https://doi.org/10.1371/journal.pstr.0000002. Accessed 4th April 2022.).

Answer the following questions in English.

Submit your answer on the space provided below. Aim to complete the exercise in approximately 20 minutes.

1. Explain what the terms bitcoin, cryptocurrency and blockchain mean?

2. What negative aspect related with mining cryptocurrencies is presented in the second chapter?

3. What is the first step to be taken in order to make cryptocurrencies more environmentally friendly?

4. As to turning cryptocurrencies more environmentally friendly, Lamba brings forth the possibility of using carbon offsets. He does this after ruling out two other possibilities of reaching this goal. What are these two ways he considers impossible to be executed?

5. In the final paragraph, Lamba introduces three prospects regarding the future of cryptocurrencies such as Bitcoin. What are these three?