Global climate change caused by human activities will continue to be catastrophic for humanity.

In particular, climate change is having serious impacts on the world's water systems, and changes in these systems can have an enormous impact on people's lives.

This is because water plays a critical role in the very existence of all forms of life on earth as the foundation of human well-being and prosperity and a source of life and livelihoods. For example, without water, farmers could not grow crops or raise animals.

In Asia, most of the climate change risks come down to water. First, climate change is altering rainfall patterns in Asia, both in terms of the amount of rainfall and its timing.

Climate models indicate that rising temperatures will increase heavy rainfall during the rainy seasons and extend the dry durations during dry seasons. These changes will, in turn, shift seasonal water availability and increase floods and droughts.

The total number of flood events in Asia increased from 303 events during 1970–1980 to 1,541 events during 2011–2020.

A version of this article appears in the print on July 13 2021, of The Himalayan Times.