Cruise ships agree to adopt the strictest measures to reduce air pollution when entering Italy's Venice Lagoon. The agreement, known as “Venice Blue Flag II,” commits cruise lines to operate the main and auxiliary engines of their ships with marine fuel with sulphur content of no more than 0.1% (lower than the EU guidelines, which recently set restrictions at 0.5%) immediately upon passing the Lido harbour entrance and while travelling through the Lagoon’s marine canals. It also…