You know what was best about old-school cargo ships? With their masts and sails, they were the original carbon-neutral ships. Now we’re seeing a resurgence of these classics as cargo ships are combining centuries old technology like masts with modern inventions like solar panels and battery generators to create cargo ships that are not only beautiful, but can also deliver heavy loads without the emissions. The ships are a welcoming sight as it shows the marine shipping industry is looking for greener solutions despite having been left out of the Paris Climate Agreement.