Hello @yoo900, quick introduction. We are travelling through Central and south America and describing countries and our feelings about them. We found that Peru is the most contaminated country we have ever visited and should start worrying us, because this might have impact to whole earth. Here's link to our post: https://busy.org/@route-m-d/most-contaminated-country-we-have-ever-seen

Hope you get interested because it's very serious problem in those countries.