I first heard of this show from a comment I heard or read ... it was a negative comment about how Zac was dumb with his questions and comments. When I had the chance to watch the episodes on Netflix, I was glad I decided to do so.
This show was not meant to be a docu-series of expert opinion, so don't expect that from Zac, but this is about a search for knowledge, and Zac showed that he was learning in each episode. So, for those who were commenting that there were no fact-checking done, that they learned nothing new, that Zac and Darin didn't know anything about each episode ... that's basically what this show is about - learning about the environment and problems, and solutions that have been done and may be done, as they visit each place.
And because Zac was learning from his travels, we (who also did not know) learned in each episode. I didn't mind all those close ups; I feel like the cameraman was trying to capture his reactions ... some of which were funny? "Will this taste like dung?" Isn't that a valid question if someone tells you that the dish was cooked by using dung to smoke it (I can't remember this detail; I have to watch that episode again). I laughed at him.
One reviewer said that after three episodes, her son was already trying to implement some of the ways shown in the show to help the environment. I think that that is one evidence that shows this program is doing what it's supposed to do.
I do hope there will be a 2nd season. I want to see more of the world and how other countries are dealing with environmental problems.
(And yes, I do not mind him using VISA to pay for the chocolates he took from the store or the food he and Darin ate from the restaurants. At least, it showed that he supported them by paying.)