we've been seeding clouds since the 80's but the valencia thing is a natural phenomenon that repeats every 50 years or so, the problem is they started building entire towns in the floodable areas after franco died, and aemet (spanish meteorology agency)'s warnings are the tale of the pastor calling wolf. they did issue a red alert for flooding but they do that every other week so people don't listen or give a shit anymore, leading to everyone being unprepared there's a lot of things our successive governments have been afraid to do so that they're not compared with franco (building dams, warning systems, rerouting rivers), even if they're in the public interest
Spain