The floods in Semarang city had three causes: a minimum number of upstream resorption areas, drainage failure, and land subsidence and sea level rise. The three must be overcome by dissimilar methods.

The increase in the frequency of tropical cyclones and tornadoes is thought to be related to global warming.

A year after natural disaster hit areas of Bogor, displaced villagers have been forced to return to their homes in Sinar Harapan hamlet despite it being still in the red zone, as hopes for relocation remain on hold.

The flash flood in Batu is an alarm for everyone. We may at times have to prioritize ecological preservation for the sake of safety.

In early February, heavy rain again poured over Jakarta, and floods ensued. The rain in Jakarta on February 19, 2021, was as intense as that when Jakarta was flooded at the beginning of 2020 (1 January 2020).