On the other hand, if you want to go for specific acute events, hydroelectric dams make nuclear power look safe. The only way to claim otherwise is to choose your dates to ignore the failure of the Banqiao Dam (171,000 deaths) and take the unreasonable high end of death toll estimates from Chernobyl and Fukushima. Presently, Mosul Dam is an excellent example of just how dangerous and real major dam failures can be.
The resulting flood waters caused a wave, 10 kilometers (6.2 mi) wide and 3–7 meters (9.8–23.0 ft) high in Suiping (遂平), to rush onto the plains below at nearly 50 kilometers per hour (31 mph), almost wiping out an area 55 kilometers (34 mi) long and 15 kilometers (9.3 mi) wide, and creating temporary lakes as large as 12,000 square kilometers (4,600 sq mi).
The following things are true, but do feel free to double-check, these facts are not controversial: nuclear energy is far, far safer per kWh than those power sources your country voluntarily switched to; the UN -- using the very conservative & pessimistic linear-no-threshold model -- expects that approximately 4,000 people will eventually die as a result of our most catastrophic nuclear disaster in human history (it seems others in this thread have given you good examples of disasters caused by non-nuclear power sources, so I won't repeat those numbers here); and the volume of waste generated by a 1 GWe nuclear reactor (were it reprocessed and vitrified) would fill right around three cubic meters.
Those things are probably a little hard for you to swallow -- I understand, you've probably spent your entire life being preached to about the dangers of nuclear power, especially if you're in a country that's remotely close to the disaster in Ukraine -- but, really, try to take a deep breath and make sure you know why you believe what you do.
And that waste will be no more radioactive than the ore it was mined from in about 600 years.
(Now, that's not entirely safe stuff for your children to roll around in, but it helps put the issue in perspective.)
https://en.wikipedia.org/wiki/Chernobyl_disaster#Effects
Apparently the downvoters are either lobbiest of the atom lobby, from those named countries or should read more about the history. The true history isn't always nice.