Because computers and cell phones are non-polluting, global carbon emissions from communications technologies are expected remain relatively stable between now and 2020. a. True
b. False

False

Explanation:

I don't know what your text book says, but computers and cell phones are absolutely polluting.  All the emissions from the manufacturing process get released into the atmosphere, and they run on electricity which is being produced at sometype of power plant (probably coal).

Since we don't know the "now" of the text book, but we do know 2020, we know that there was a sharp increase in 2018 that started to level off in 2020 from e-waste.  It's estimated there are 3 electronic devices for every 1 person in the world.

For these reasons, I would have to say False as the answer; however, your textbook may disagree.  The benefits of future knowledge.

Cheers.