Thanks to the severe crisis that airlines are facing, many of them decided to take the reinvention of their services to the maximum expression. From airplanes with only business class for their passengers, flights with free center seats, and even religious flights are just some of the offers that can be accessed today, let's see what it is about.

While aviation accounts for a relatively small share of carbon dioxide emissions, experts have explained that these could triple by 2050. This is a reason for the aviation industry to focus on ways to reduce a sector's footprint in constant…