Investment in low-carbon energy is to increase ten-fold to $5bn a year by 2030. Over the next decade, renewable generating capacity will rise 20-fold and oil and gas production will be shrunk by 40%.
The UK aviation industry has pledged to cut its net carbon emissions to zero by 2050 – despite still planning for 70% more flights over the next three decades.
In Kotor and Dubrovnik large cruise ships dock regularly throughout the season, depositing thousands of people each day into the tourist hotspots and putting intense pressure on the historic ports.
A tax on daytrippers has hit the headlines, but La Serenissima's mounting problems also include rising waters, angry locals and a potential black mark from Unesco.