Venezia: high tide wave and "acqua alta" flood and Mose Works to control it:

...flood in venice? global warming might increase it but is not the main reason. it's a common situation every year starting in november, ending in february, lasting few days generally when there is full moon and high tide contemporarily or when sciroccan winds rush waves from open sea into venice lagoon. that's the reason why the mose barrier is now ahead in construction, and when ready, the barriers will rise up when these two phenomenons are expected.
i remember in 1952 when i was a schoolboy, going by motorboat every morning from home in lido island to saint mark square. and then those high tide days taking off socks and shoes and save those into my schoolbag that i carried on my shoulder and walk barefeet into water crossing venice calles and bridges all the way to sebastian cabot school almost at santa lucia railway station. at the end enjoyimg when seated in my school bench, with my feet feeling sensation of the warm wood plank, waiting to dry up and wear socks and shoes again while the lesson was going on. So, venetian high tide is known since long before global warming, although in these last years is gone up few centimeters more.